☆GO-Compatible ◆Synchronous Bootstrap N-ch & N-ch Driver ◆Input Voltage Range :4.0V ~ 25.0V ◆Oscillation Frequency :300kHz (accuracy±15%) ◆High Efficiency :93% (TYP.) ◆PWM / PFM Manual Switching Control ◆Overcurrent Protection Circuit Built-In ◆TSSOP-16 package ■APPLICATIONS ■GENERAL DESCRIPTION ■FEATURES The XC9213 series is N-ch ＆ N-ch drive, synchronous, step-down DC/DC controller IC with a built-in bootstrap driver circuit. Output will be stable no matter which load capacitors, including low ESR capacitors, are used. Resistance (RSENSE) of about several 10m Ω will be required as a current sense. The phase compensation is also run when a low ESR capacitor is used. In addition, the circuit is double protected by the ways of limiting the current while detecting overshoot current and making output shutdown at any given timing by a protection time setting capacitor (CPRO). The output voltage can be set freely within a range of 1.5V~15.0V with 1.0V (accuracy±2%) of internal reference voltage by using externally connected resistors (RFB1, 2). Synchronous rectification PWM control can be switched to non-synchronous current limit PFM/PWM automatic switchable control (=voltage between RSENSE pins) by using the MODE pin. The series has a built-in voltage detector for monitoring a selected voltage by external resistors. During stand-by (CE pin = low) all circuits are shutdown to reduce current consumption to as low as 4.0μA or less. Input Voltage Range ■TYPICAL APPLICATION CIRCUIT May 23, 2005 V7 ●PDAs ●Mobile phones ●Note book computers ●Portable audio systems ●Various multi-function power supplies :4.0V ~ 25.0V Output Voltage Range :1.5V ~ 15.0V externally set Reference voltage : 1.0V (±2%) Oscillation Frequency :300kHz (±15%) Output Current :More than 5A (VIN=5.0V, VOUT=3.3V) Control :PWM/PFM manual -switching control Current Limiter, Protection :Current limit operates at voltage sense 170mV (TYP.). Shutdown time can be adjusted by CPRO. High Efficiency :93% [TYP. PWM Mode @ VIN=5.0V, VOUT = 3.3V, IOUT=1A] Detect Voltage Function :Detects 0.9V / Open-drain output Stand-by Current :ISTB = 4.0μA (MAX.) Load Capacitor :Low ESR capacitor compatible Package :TSSOP-16 ■TYPICAL PERFORMANCE CHARACTERISTICS SD2 RSENSE VIN VDIN VIN CVL CSS CSS CPRO Tr1 L LX VDOUT VL CBST BST EXT1 VDIN VDOUT CIN VSENSE SD1 XC9213 VOUT RFB1 CFB CL FB EXT2 RFB2 Tr2 AGND MODE CE PGND CPRO Data Sheet ud200528 1 XC9213 Series ■PIN CONFIGURATION 1 16 2 3 4 15 14 13 5 6 12 11 10 9 7 8 TSSOP-16 (TOP VIEW) ■PIN ASSIGNMENT PIN NUMBER PIN NAME 1 2 VIN VSENSE 3 VL FUNCTION Input Voltage Current Detection Local Power Supply 4 CE 5 AGND Analog Ground 6 MODE CPRO PWM / Current Limit PFM Switch 7 8 Chip Enable Protection Time Setting Capacitor Connection <Set shutdown time of VOUT when detecting overcurrent> <Set soft-start time> CSS Soft-start Capacitor Connection 9 VDIN Voltage Detector Input (0.9V) 10 FB Output Voltage Setting Resistor Connection 11 VDOUT Voltage Detector Output (Open-Drain) 12 PGND 13 EXT2 14 LX 15 EXT1 High Side N-ch Driver Transistor 16 BST Bootstrap < Set output voltage freely by split resistors > Power Ground Low Side N-ch Driver Transistor <Connect to Gate of Low Side N-ch MOSFET > Coil Connection <Connect to Gate of High Side N-ch MOSFET > ■CE PIN & MODE PIN FUNCTION CE PIN OPERATIONAL STATE H Operation L Shut down MODE PIN H L OPERATIONAL STATE Synchronous PWM Control Non-Synchronous PWM / Current Limit PFM Automatic Switching Control ■PRODUCT CLASSIFICATION ●Ordering Information XC9213B①②③④⑤ DESIGNATOR 2 DESCRIPTION SYMBOL DESCRIPTION ① ② Reference Voltage 10 : 1.0V (Fixed) ③ Oscillation Frequency 3 : 300kHz ④ Package V : TSSOP-16 ⑤ Device Orientation R : Embossed tape, standard feed L : Embossed tape, reverse feed Data Sheet ud200528 XC9213 Series ■PACKAGING INFORMATION ●TSSOP-16 +0. 1 - 0. 05 6. 4± 0. 2 4. 4± 0. 2 0. 5± 0. 2 0. 22 1. 15± 0. 1 0. 22 +0. 1 0. 1± 0. 05 5. 1± 0. 2 （ 0. 65） - 0. 05 ■MARKING RULE 16 15 14 13 12 11 10 9 ●TSSOP-16 ①②③④Represents product series MARK ① ② ③ ④ 2 1 3 B a b c PRODUCT SERIES XC9213B103Vx ④ ⑤⑥Represents standard voltage MARK ⑤ ⑥ 1 0 VOLTAGE (V) PRODUCT SERIES 1.0 XC9213B103Vx 1 3 ① ② ③ ⑤ ⑥ ⑦ 4 5 6 7 8 TSSOP-16 (TOP VIEW) ⑦Represents oscillation frequency MARK OSCILLATION FREQUENCY PRODUCT SERIES 3 300kHz XC9213B103Vx Data Sheet ud200528 2 d 3 XC9213 Series ■ABSOLUTE MAXIMUM RATINGS Ta = 25OC PARAMETER SYMBOL RATINGS UNITS VIN Pin Voltage VSENSE Pin Voltage VL Pin Voltage CE Pin Voltage (*) MODE Pin Voltage (*) CPRO Pin Voltage CSS Pin Voltage VDIN Pin Voltage FB Pin Voltage VDOUT Pin Voltage EXT2 Pin Voltage Lx Pin Voltage EXT1 Pin Voltage BST Pin Voltage EXT1 Pin Current EXT2 Pin Current Lx Pin Current Power Dissipation Operational Temperature Range Storage Temperature Range VIN VSENSE VL CE MODE CPRO CSS VDIN FB VDOUT EXT2 Lx EXT1 BST IEXT1 IEXT2 ILx Pd Topr Tstg - 0.3 ~ 30.0 - 0.3 ~ 30.0 - 0.3 ~ 6.0 - 0.3 ~ 30.0 - 0.3 ~ 30.0 - 0.3 ~ 6.0 - 0.3 ~ 6.0 - 0.3 ~ 6.0 - 0.3 ~ 6.0 - 0.3 ~ 30.0 - 0.3 ~ 6.0 - 0.3 ~ 30.0 - 0.3 ~ 30.0 - 0.3 ~ 30.0 ±100 ±100 100 350 - 40 ~ + 85 - 55 ~ + 125 V V V V V V V V V V V V V V mA mA mA mW O C O C (*) CE, MODE pin voltage 1) 1.4V≦High Level≦6V The CE pin and the MODE pin can be connected directly to the high level power supply. 2) 6V < High Level < 30V The CE pin and the MODE pin should be connected to over 1kΩ resistor when connecting 1.4V<High Level<6V IC Inside R>1kΩ IC Inside CE or MODE 4 6V<High Level<30V CE or MODE Data Sheet ud200528 XC9213 Series ■ELECTRICAL CHARACTERISTICS XC9213B103 (FOSC = 300kHz) MIN. TYP. MAX. UNITS CIRCUIT VIN 4.0 - 25.0 V - VOUTSET 1.5 - 15.0 V - PARAMETER SYMBOL Input Voltage (*2) Output Voltage Setting Range O Ta=25 C CONDITIONS FB Control Voltage VFB 0.980 1.000 1.020 V 1 U.V.L.O. Voltage UVLO Voltage which EXT1 pin starts oscillation 1.0 1.5 2.0 V 2 Supply Current 1 IDD1 CE=VIN, FB=0.9V - 550 800 μA 3 Supply Current 2 IDD2 CE=VIN, FB=1.1V - 450 600 μA 3 Stand-by Current ISTB CE=FB=0V - - 4.0 μA 4 Oscillation Frequency FOSC CE=VIN, FB=0.9V 255 300 345 kHz 5 Maximum Duty Ratio 1 MAXDTY1 CE=VIN, FB=0.9V 91 95 - % 5 Maximum Duty Ratio 2 MAXDTY2 CE=VIN, FB=1.1V - 98 - % 5 PFM Duty Ratio PFMDTY 2.5 3.0 3.9 μS 6 Sense Voltage VSENSE 145 170 200 mV 7 2.3 4.7 9.4 ms 8 4 8 21 ms 9 0.15 0.40 0.72 V 25 With external components, IOUT=1A, VOUT=3.0V - 93 - % 10 11 CPRO time TPRO Soft-Start Time TSS With external components, VOUT=3V, MODE=0V, IOUT=1mA, No RSENSE Voltage which EXT1 pin stops oscillation CPRO=4700pF, VSENSE=0V 0.5V, Time until VDOUT inverts H to L With external components, CSS=4700pF, CE=0V 3V, Time until voltage becomes VOUT x 0.95 Short Protection Circuit Operating Voltage VSHORT VIN-VSENSE:0.3V fixed, FB:SWEEP. Voltage which VDOUT inverts H to L Efficiency EFFI CE "H" Voltage VCEH Voltage which EXT1 pin starts oscillation 1.4 - - V CE "L" Voltage VCEL Voltage which EXT1 pin voltage holding "L" level - - 0.4 V 11 MODE "H" Voltage VMODEH Voltage which EXT2 pin starts oscillation 1.4 - - V 12 MODE "L" Voltage VMODEL Voltage which EXT2 pin voltage holding "L" level - - 0.4 V 12 EXT1 "H" ON Resistance REXT1H FB=0.9V, EXT1=3.6V - 18 23 Ω 13 EXT1 "L" ON Resistance REXT1L FB=1.1V, EXT1=0.4V - 11 18 Ω 14 EXT2 "H" ON Resistance REXT2H FB=1.1V, EXT1=3.6V - 18 23 Ω 15 EXT2 "L" ON Resistance REXT2L FB=0.9V, EXT2=0.4V - 4 8 Ω 16 Dead Time 1 TDT1 With external components, EXT1:H L, EXT2:L H - 100 - ns 10 Dead Time 2 TDT2 With external components, EXT2:H L, EXT1:L H - 60 - ns 10 CE "H" Current ICEH CE=5.0V - - 0.1 μA 17 CE "L" Current ICEL CE=0V -0.1 - - μA 17 MODE "H" Current IMODEH MODE=5.0V - - 0.1 μA 18 MODE "L" Current IMODEL MODE=0V -0.1 - - μA 18 CSS Current ICSS CSS=0V -4.0 -2.0 - μA 19 FB "H" Current IFBH FB=5.0V - - 0.1 μA 20 FB "L" Current IFBL FB=0V -0.1 - - μA 20 Data Sheet ud200528 5 XC9213 Series ■ELECTRICAL CHARACTERISTICS (Continued) XC9213B103 (Continued) ●Voltage Regulator (*3) PARAMETER SYMBOL Output Voltage VLOUT Load Regulation Input Regulation VLOUT VLOUT VIN・VLOUT CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT FB=1.1V, ILOUT=10mA 3.86 4.00 4.14 V 21 FB=1.1V, 1mA≦ILOUT≦30mA - 45 90 mV 21 FB=1.1V, ILOUT=10mA, VLOUT+1V≦VIN≦25V - 0.05 0.1 %/V 21 CONDITIONS MIN. TYP. MAX. UNITS CIRCUIT 0.855 0.900 0.925 V 22 0.915 0.954 0.980 V 22 22 ●Voltage Detector PARAMETER SYMBOL Detect Voltage VDF Release Voltage (*4) VDR FB=1.1V, Voltage which VDOUT inverters H to L FB=1.1V, Voltage which VDOUT inverters L to H Hysteresis Range HYS FB=1.1V 2.9 6.0 7.5 % Output Current VDIOUT FB=1.1V, VDIN=VDF-0.4V, VDOUT=0.5V 5 15 20 mA 23 Delay Time TDLY VDR→VDOUT inversion - - 10 μs 22 VDIN Current IVDIN VDIN=5.0V - - 0.1 μA 24 NOTE: *1: Unless otherwise stated, VIN=5.0V, CE=5.0V, MODE=5.0V, FB=0.9V *2: The operation may not be stable at no load, if the step-down ratio (VOUT/VIN x 100) becomes lower than 12%. *3: The regulator block is used only for bootstrap. Please do not use as a local power supply. *4: Release voltage: (VDR) = VDF + HYS x VDF 6 Data Sheet ud200528 XC9213 Series ■TEST CIRCUITS Circuit 1 Circuit 2 OCS OCS Circuit 3 Circuit 4 Circuit 5 Circuit 6 SBD1 VIN VSE NSE VL + - 10u F 1uF + - + - VIN OCS OCS EXT1 LX EXT2 AGND PGND MODE VDOUT CSS VSENSE 100 kΩ BST EXT1 1uF Tr1 L 100 kΩ OCS OCS CE CPRO OSC OSC CIN BST + - 1uF LX EXT2 AGND PGND MODE VDOUT Tr2 CFB + - FB VL CE + - CPRO CSS VDIN FB RFB1 CL RFB2 VDIN 100pF 100p F + - Circuit 7 + - VIN VSENSE VL + - 10uF 1uF + - + - Data Sheet ud200528 EXT1 LX CE EXT2 AGND PGND MODE VDOUT CPRO FB CSS 100pF100pF BST OSC OSC 100kΩ 100kΩ Tr1: 2SK2857 (NEC) Tr2: 2SK2857 (NEC) SBD1: L: CL: VDIN + - CRS02 (TOSHIBA) 22μH 100μF CIN1: 22μF RFB1: 220kΩ RFB2: 110kΩ CFB: CDRH6D28 (SUMIDA) (OS-CON, NIPPON CHEMI-CON) (OS-CON, SANYO) 68pF 7 XC9213 Series ■TEST CIRCUITS (Continued) Circuit 8 Circuit 9 VIN RSENSE: 33 mΩ 10uF 1uF + - + - 4700pF XB01SB04A2BR(TOREX) EXT1 VSE NSE VL LX CE EXT2 AG ND PG ND MO DE VDO UT CPR FB CSS VDIN OSC OSC VIN 100kΩ 100kΩ VSENSE ceramic 1uF + - 100pF ceramic 10uF+10uF BST ceramic 1uF EXT1 VL LX CE EXT2 AGND PGND MODE VDOUT CPRO FB 7.4uH(SUMIDA) VOUT CMS02 (TOSHIBA) VIN 100kΩ ceramic 47pF 200kΩ VL VDIN CSS IRF7313 (IR) 100kΩ 100kΩ ceramic 4700pF 25PS100JM12 100uF (NIPPON CHEMI-CON) + - BST VIN + - GND Circuit 10 Circuit 11 VIN RSENSE: 33 mΩ VIN XB01SB04A2BR(TOREX) VL ceramic 1uF ceramic 4700pF CE EXT1 VSENSE IRF7313 (IR) ceramic 1uF 7.4uH(SUMIDA) LX EXT2 AGND PGND MODE VDOUT CPRO FB CSS ceramic 10uF+10uF VDIN CMS02 (TOSHIBA) + - ceramic 47pF VIN 100kΩ 200kΩ VL 100kΩ 100kΩ ceramic 4700pF 25 PS 100 JM12 100u F VSENSE BST 10uF 1uF + - (NIPP ON CH EMI-CON) VIN BST EXT1 VL LX CE EXT2 AGND PGND MODE VDOUT CPRO CSS OSC OSC 100kΩ 100kΩ FB VDIN 100pF + - GND Circuit 12 Circuit 13 VIN VSENSE + - 10uF 1uF + - VL LX CE EXT2 AGND PGND MODE VDOUT CPRO CSS 100pF 8 VIN BST EXT1 VSENSE 100kΩ 100kΩ OSC O SC + - FB 10uF 1uF + - VDIN VL LX CE EXT2 AGND PGND MODE VDOUT CPRO CSS + - 100pF BST OSC OSC EXT1 FB 50kΩ VDIN + - + - 10uF Data Sheet ud200528 XC9213 Series ■TEST CIRCUITS (Continued) Circuit 14 Circuit 15 VSENSE + - 10uF 1uF + - VIN BST VIN VSENSE EXT1 VL LX VL LX CE EXT2 CE EXT2 AGND PGND MODE VDOUT CPRO V FB + - 100pF PGND MODE VDOUT CPRO FB OSC OSC 50Ω VDIN 100pF + - + - 10uF Circuit 17 VIN VSENSE 10uF 1uF + - BST VIN BST EXT1 VSENSE EXT1 VL LX VL LX CE EXT2 CE EXT2 AGND PGND MODE VDOUT CPRO CSS + - V 10uF 1uF A FB + - VDIN AGND PGND MODE VDOUT CPRO 100kΩ 100kΩ FB CSS VDIN + - 100pF 100pF Circuit 18 Circuit 19 VIN VSENSE 10uF 1uF VSENSE EXT1 LX CE EXT2 AGND PGND MODE VDOUT CSS + - VIN BST BST VL CPRO A Data Sheet ud200528 AGND CSS + - Circuit 16 + - 10uF 1uF + - VDIN CSS + - BST EXT1 FB 100kΩ 100kΩ + - 10uF 1uF + - + - VL LX CE EXT2 AGND PGND MODE VDOUT CPRO CSS VDIN EXT1 100kΩ 100kΩ FB VDIN A 100pF 9 XC9213 Series ■TEST CIRCUITS (Continued) Circuit 20 Circuit 21 + - 10uF 1uF EXT1 VL LX CE EXT2 AGND PGND VDOUT CPRO CSS 100kΩ 10u F + - IL ↓ V 1uF + - FB VDIN + - VL LX CE EXT2 AGND PGND MODE VDOUT CSS + - 100 kΩ VDIN + - 100p F Circuit 22 100 kΩ FB CPRO A 100p F Circuit 23 VIN VSENSE + - 10uF 1uF + - VL LX EXT2 AGND PGND MODE VDOUT CPRO VIN BST 100kΩ + - 10u F 1uF + - V FB + - + - Circuit 24 EXT1 VL LX CE EXT2 AGND PGND MODE VDOUT CPRO A FB VDIN CSS VDIN 100p F BST VSE NSE EXT1 CE CSS + - 100p F + - + - Circuit 25 VIN VSENSE + 10uF 1uF - + - 100kΩ VIN VSENSE BST EXT1 LX VL LX CE EXT2 CE EXT2 AGND PGND MODE VDOUT CSS 100pF BST EXT1 VL CPRO 10 EXT1 VSE NSE 100kΩ MODE BST VIN BST VIN VSE NSE + - + - FB VDIN 10uF 1uF A + - + - AGND PGND MODE VDOUT CPRO CSS 100pF OSC OSC 100kΩ 100kΩ FB VDIN + - Data Sheet ud200528 XC9213 Series ■BLOCK DIAGRAM ■OPERATIONAL EXPLANATION < Error Amplifier > The error amplifier is designed to monitor output voltage. The amplifier compares the reference voltage with the feedback voltage. When a voltage lower than the reference voltage is fed back, the output voltage of the error amplifier increases. <Ramp Wave Generator> The Ramp Wave Generator is organized by the circuits generates a saw-tooth waveform based on the oscillator circuit which sets an oscillation frequency and a signal from the oscillator circuit. < PWM Comparator > The PWM Comparator compares outputs from the error amp. and saw-tooth waveform. When the voltage from the error amp's output voltage is low, the external switch will be set to OFF. < U.V.L.O. Comparator > When the VIN pin voltage is lower than 1.5V (TYP.), the circuit sets EXT/2 to "L" and the external transistor is forced OFF. < Voltage Regulator > The voltage regulator block generates 4.0V voltage for the bootstrap circuit. The regulator block is also the power supply for the internal circuit. Please do not use the regulator block as a local power supply. <Vref with Soft Start> The reference voltage, Vref (FB pin voltage)=1.0V, is adjusted and fixed by laser trimming. The soft-start circuit protects against inrush current, when the power is switched on, and also to protect against voltage overshoot. It should be noted, however, that this circuit does not protect the load capacitor (CL) from inrush current. With the Vref voltage limited and depending upon the input to the error amps, the operation maintains a balance between the two inputs of the error amps and controls the EXT1 pin's ON time so that it doesn't increase more than is necessary. <CE Control Logic > This function controls the operation and shutdown of the IC. When the voltage of the CE pin is 0.4V or less, the mode will be chip disable, the channel's operations will stop. The EXT1/2 pins will be kept at a low level (the external N-ch MOSFET will be OFF). When the CE pin is in a state of chip disable, current consumption will be no more than 4.0μA. When the CE pin's voltage is 1.4V or more, the mode will be chip enable and operations will recommence. With soft-start, 95% of the set output voltage will be reached within 8mS (CSS: 4700pF (TYP.)) from the moment of chip enable. < Voltage Detector > The voltage detector of the XC9213 series is FB type. The reference voltage is 0.9V (TYP.) and the detect voltage can be set by external resistors. The output is N-ch Open Drain type. The detector is switched on / off with DC/DC by the CE pin. Data Sheet ud200528 11 XC9213 Series ■OPERATIONAL EXPLANATION (Continued) < Protection Circuit Operation (Current Limit, Latch Protection Circuit, and Short Protection Circuit) > Shown above is a timing chart for protection circuit operations. When the output current changes from normal to an overcurrent condition, the current-limiting circuit detects the overcurrent condition as a voltage drop occurring, by virtue of the current-sensing resistor, at the VSENSE pin. Upon detection, the current-limiting circuit limits the peak current passed through the high-side N-ch MOSFET at every clock pulse (state ①). It is possible to regulate the value of limited current by varying the resistance value of the current-sensing resistor. A protection circuit (protective latch circuit), which is designed to stop the clock, functions if the overcurrent condition continues for a predetermined time (state ②). Time delay before the protective latch circuit functions is adjustable by the capacitance connected to the CPRO pin (typically 4.7 ms if CPRO has 4,700 pF). The protective latch circuit is reset by turning off and on, or by a disable action followed by an enable action using the CE pin. If, furthermore, the output is short-circuited (state ③) and VOUT decreases to a value close to 0 V, the short-circuit protection circuit detects the condition by means of the FB pin and stops the clock with no time delay. The short-circuit protection circuit is reset by turning off and on or by a disable action followed by an enable action using the CE pin, as with the protective latch circuit. < Mode Control Logic > A timing chart for automatic switching of current-limiting PFM/PWM is shown above. High-level of the MODE pin allows PWM operations to occur for synchronous rectification (state ①). When the MODE pin shifts to low-level, current-limiting PFM/PWM automatic switching occurs with synchronous rectification stopped. Consequently, the low-side N-ch MOSFET is constantly off under this condition. In addition, a comparison is made for the purposes of automatic switching, between the ON time of the high-side N-ch MOSFET determined by the internal error amp. and the time required for the current passed at every clock pulse through the high-side N-ch MOSFET to reach a preset amount of current. The longer one is selected and becomes on duty (state ② or ③). If the time determined by the error amp. is longer than the other, PWM operation occurs. Current-limiting PFM operation occurs if the time taken by the current passing at every clock pulse to reach a preset amount of current is longer. Thus the automatic switching mechanism achieves high efficiency under light to heavy load conditions. 12 Data Sheet ud200528 XC9213 Series ■TYPICAL APPLICATION CIRCUIT *Please place CIN close to RSENSE as much as possible, so that an impedance does not occur between the elements. *Please place CIN, RSENSE, Tr1, Tr2, L, CL, and SD1 as close as possible to each other. ■EXTERNAL COMPONENTS * Please refer to the DC/DC simulation section of the Torex web site (http//:www.torex.co.jp) for more details. ●Recommended N-ch MOSFETs for Tr1 and Tr2 ●IOUT : Less than 3A PART NUMBER MANUFACTURER TYPE Ciss (pF) Crss (pF) Crss / (Ciss + Crss) uPA2751GR NEC Dual 1040 130 0.111 IRF7313 International Rectifier Dual 650 130 0.167 ●IOUT : More than 3A PART NUMBER MANUFACTURER TYPE Ciss (pF) Crss (pF) Crss / (Ciss + Crss) SUD30N03 Vishay Single 1170 30 0.049 SUD70N03 Vishay Single 2700 360 0.118 * It is recommended to use MOSFETs with Ciss less than 3000pF. * For Tr2, MOSFETs with smaller Crss / (Ciss + Crss) are recommended. ●Recommended Coil (L) PART NUMBER MANUFACTURER CDRH127/LD-7R4 SUMIDA CDRH127-6R1 SUMIDA * For stable operation, please use a coil with L less than 22μH. ●Recommended Capacitor (CIN, CVL, CBST, CL) COMPONENTS CIN (*1) PART NUMBER MANUFACTURER TYPE VALUE PCS - - Ceramic 10μF 2 25SC22M SANYO OS 22μF 1 CVL - - Ceramic 1μF 1 CBST - - Ceramic 1μF ~ 4.7μF 1 20SS150M SANYO OS 150μF 25PS100JM12 NIPPON CHEMI-CON - 100μF CL (*2) 1 (*1)Please place CIN close to RSENSE as much as possible, so that an impedance does not occur between the elements. A 1µF ceramic capacitor is recommended for CVL. (*2)Operation may become unstable if a ceramic capacitor is used for CL. Data Sheet ud200528 13 XC9213 Series ■EXTERNAL COMPONENTS (Continued) ●Output Voltage Setting (RFB1, RFB2, CFB) Output voltage can be set by adding external split resistors. Output voltage is determined by the following equation, based on the values of RFB1 and RFB2. The sum of RFB1 and RFB2 should normally be 2 MΩ or less (RFB1 + RFB2≦2MΩ). VOUT = RFB1 / RFB2 + 1 The value of CFB, speed-up capacitor for phase compensation, should be adjusted by the following equation. fzfb= 1 / (2 x π x CFB x RFB1)≒10kHz Adjustments are required from 1kHz to 50kHz depending on the application, value of inductance (L), and value of load capacity (CL). ex.) Output voltage setting VOUT (V) RFB1 (Ω) RFB2 (Ω) CFB (pF) 1.5 150 300 100 1.8 160 200 100 2.5 360 240 47 3.0 220 110 47 3.3 620 270 27 5.0 300 75 47 ●Recommended Schottky Diode (SD1, SD2) SYMBOL SD1 SD2 PART NUMBER MANUFACTURER CMS02 DE5PC3 XB01SB04A2BR CRS02 TOSHIBA SHINDENGEN TOREX TOSHIBA * SD1 and SD2 should be of favorable reverse-current characteristics. If, in particular, SD2 has poor reverse-current characteristics, CBST cannot be fully charged at high temperatures, resulting, in some cases, in failure to drive Tr1. ●Setting Latch Protection Circuit Delay Time (CPRO) Time delay is 4.7 ms (TYP.) under the current conditions if CPRO has 4,700 pF. This time delay is roughly proportional to the value of CPRO. ex.) When CPRO is 2200pF, 4.7ms (TYP.) x 2200pF / 4700pF =2.2ms (TYP.) When CPRO is 0.01μF (10,000pF), 4.7ms (TYP.) x 10000pF / 4700pF =10ms (TYP.) * For stable operation, please use a capacitor with more than 2200pF as CPRO. ●Setting Soft-Start Time (CSS) Relationships between the value of CSS and the soft-start time (25OC TYP.) are shown at left. For stable operation, please use a capacitor with more than 2200pF as CSS. 14 Data Sheet ud200528 XC9213 Series ■EXTERNAL COMPONENTS (Continued) ●Sense Resistance (RSENSE) The below values can be adjusted by using sense resistance (RSENSE). It is recommended using the RSENSE value in the range of 20mΩ to 100mΩ. 1) Detect current value of the overcurrent detect circuit Maximum output current (IOUTMAX) can be adjusted as the equation below. IOUTMAX (A) ≒ 200mV (MAX.) / RSENSE (mΩ) When 4V≦VIN＜5V, the maximum output current becomes larger than the calculated value. Please also refer to the characteristics performance below. 2) Peak current value of the current limit PFM control Peak current value of the current limit PFM control (I_PFM) varies depending on the dropout voltage (VDIF), the coil (L) value and the sense resistance value (RSENSE). For the XC9213 series' sample with voltage sense (VSENSE) 170mV, the characteristic performance below shows the changes in the peak current (I_PFM) when the sense resistance values (RSENSE) are 20mΩ, 33 mΩ, and 50 mΩ. The peak current varies according to the dropout voltage and the coil value. PFM Peak Current RSENSE:20mΩ 3.0 RSENSE:33mΩ 3.0 2.5 I_PFM(TYP. 25℃) (A) I_PFM(TYP. 25℃) (A) PFM Peak Current 2.0 1.5 1.0 0.5 0.0 2.5 2.0 1.5 1.0 0.5 0.0 0 1 2 3 Vdif/L (V/μ H) 4 5 0 1 2 3 4 5 Vdif/L (V/μ H) PFM Peak Current RSENSE:50mΩ I_PFM(TYP. 25℃) (A) 3.0 The sense voltage varies within the range of 145 mV≦VSENSE≦200mV. The peak current as shown in three graphs fluctuates 2.5 according to the sample's sense voltage. 2.0 1.5 1.0 0.5 0.0 0 1 2 3 4 5 Vdif/L (V/μ H) Data Sheet ud200528 15 XC9213 Series ■EXTERNAL COMPONENTS (Continued) ●Divided Resistors For VD Input Voltages (RVDIN1, RVDIN2) Detect voltage of the detector block can be adjusted by the external divided resistors for VD input voltages (RVDIN1, RVDIN2) as the equation below. When 0.855V < VDF < 0.925V (0.9V TYP.) Detect voltage = VDF x (RVDIN1 + RVDIN2) / RVDIN2 [V] Please select RVDIN1 and RVDIN2 as the sum of RVDIN1 and RVDIN2 becomes less than 2MΩ. ●Divided Resistor For VD Output Voltage (RVDOUT) Output type of the detector block is N-channel open drain. Please use a 1kΩ resistor or more as RVDOUT. ■APPLICATION CIRCUIT EXAMPLE The application circuit shown below is the example for using the detector block as power good. Please connect the VDIN pin with the FB pin as below. 16 Data Sheet ud200528 XC9213 Series ■NOTES ON USE 1. Overcurrent Limit Function The internal current detection circuit is designed to monitor voltage occurs between RSENSE resistors in the overcurrent condition. In case that the overcurrent limit function operates when the output is shorted, etc., the current detection circuit detects that the voltage between RSENSE resistors reaches the SENSE voltage (170mV TYP.), and, thereby, the overcurrent limit circuit outputs the signal, which makes High side’s N-ch MOSFET turn off. Therefore, delay time will occur (300ns TYP.) after the current detection circuit detects the SENSE voltage before High side’s N-ch MOSFET turns off. When the overcurrent limit function operates because of rapid load fluctuation etc., the SENSE voltage will spread during the delay time without being limited at the voltage value, which is supposed to be limited. Therefore, please be noted to the absolute maximum ratings of external MOSFET, a coil, and an Schottky diode. 2. Short Protection Circuit In case that a power supply is applied to the IC while the output is shorted, or the IC is switched to enable state from disable state via the CE pin, when High side’s N-ch MOSFET is ON and Low side’s N-ch MOSFET is OFF, the potential difference for input voltage will occur to the both ends of a coil. Therefore, the time rate of coil current becomes large. By contrast, when High side’s N-ch MOSFET is OFF and Low side’s N-ch MOSFET is ON, there is almost no potential difference at both ends of the coil since the output voltage is shorted to the Ground. For this, the time rate of coil current becomes quite small. This operation is repeated within soft-start time; therefore, coil current will increase for every clock. Also with the delay time of the circuit, coil current will be converged on a certain current value without being limited at the current amount, which is supposed to be limited. However, step-down operation will stop and the circuit can be latched if FB voltage is decreasing to the voltage level, which enables to operate a short protection circuit when the soft-start time completes. Even if the FB voltage is not decreasing to the voltage level, which a short protection circuit cannot be operated, the step-down operation stops when CPRO time completes, and the circuit will be latched. Please be noted to the absolute maximum ratings of external MOSFET, a coil, and an Schottky diode. 3. Current Limit PFM Control With a built-in bootstrap buffer driver circuit, the 9213 series generates voltage for Tr1 to be turned on by charging CBST with VL (4V). When Tr1 is off, Tr2 is on, and the Lx signal is low, it will be suitable timing for charging CBST. (Please refer to the above figure.) For that reason, at PFM control (MODE: Low), the clock pulses will decrease extremely according to the decrease of the load current. As a result, it will cause a decrease of charging frequency and an electric discharge of CBST so that sufficient voltage for the Tr1 to be turned on will not be supplied. Therefore, 1) Please use a Schottky Barrier Diode with few reverse current values for SD2. 2) Please avoid extreme light loads (e.g. less than a few mA) Moreover, the above-mentioned operation may occur, influenced by external components including SD2 and ambient temperature. It’s recommended to use the IC after evaluation with an actual device. VL(4V) SD2 BST VIN Tr1 EXT1 XC9213 CBST GND L LX CL Tr2 CBST Charge CBST Charge LX Waveform (MODE:Low, PFM) EXT2 SD1 PGND Data Sheet ud200528 17 XC9213 Series ■NOTES ON USE (Continued) 4. Switching on and off the IC by the input voltage pin When the IC is switched on and off by the input voltage pin (VIN) instead of the chip enable pin (CE), the IC may stop operation because a protection circuit built inside the short-protection circuit, etc. begins to work in order to block ON signal which is sent before the soft-start capacitor connection pin (CSS) resets. The following methods can be used for avoiding this situation; a) Turn on the power source again after input voltage becomes below U.V.L.O. detect voltage (1.0V MIN.), furthermore, after the lapse of the time constant of τ=CSS x 50k. b) Before turning the power source on again, start-up the IC after resetting the CSS forcibly and keeping soft-start time. Please make sure the CSS pin is discharged once and the soft-start time is secured when starting up the IC. 18 Data Sheet ud200528 XC9213 Series ■RECOMMENDED PCB LAYOUT ●Layout For Using a Dual MOSFET TOREX TR CL CL RVD1 VDIN CSS + L VOUT VL RFB2 RFB1 FB Ceramic Capacitor Test pin XC9213 RVD2 CPRO Resistance VER.2.0B Tr GND CVL IC SD CDD RVD3 SD1 CBST CE 0306 RSENSE RSENSE SD SD2 VDOUT MODE VIN + CIN CFB L RSENSE VIN 0308 VER.2.1A G TR1 SD2 SD G Tr Resistance TR2 VDOUT CIN RSENSE TOREX XC9213 CIN + ●Layout For Using a Single MOSFET <TOP VIEW> RVD3 CBST Ceramic Capacitor IC CVL CE MODE Test pin SD CDD GND CSS L SD1 CPRO RVD1 RVD2 CL VL + CL L + RFB1 FB VDIN RFB2 CL VOUT CFB <BOTTOM VIEW> Tr * Please use tinned wires etc. for the VIN, the VOUT, and the GND. ** Please attach test pins etc. to the CE, the MODE, the EXT, and the EXT2. *** Please solder mount the RSENSE and the CE as close as possible. Data Sheet ud200528 19 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Unless otherwise stated, Topr:25℃) (1) Output Voltage vs. Output Current <MODE: High> VOUT vs. IOUT 1.9 1.8 VIN:5V, 8V, 15V, 20V 1.7 1.6 10 100 1000 Output Current IOUT (mA) VOUT vs. IOUT 1.8 VIN:5V, 8V, 15V, 20V 1.7 1.6 10 10000 100 1000 Output Current IOUT (mA) FET:SUD30N03 3.5 3.4 3.3 VIN:5V, 8V, 15V, 20V 3.2 3.1 10000 VOUT vs. IOUT FET:IRF7313 Output Voltage VOUT (mA) Output Voltage VOUT (mA) 3.5 3.0 3.4 3.3 VIN:5V, 8V, 15V, 20V 3.2 3.1 3.0 10 100 1000 Output Current IOUT (mA) VOUT vs. IOUT 5.2 10000 5.0 VIN:8V, 15V, 20V 4.8 100 1000 Output Current IOUT (mA) VOUT vs. IOUT FET:IRF7313 5.1 4.9 10 5.2 Output Voltage VOUT (mA) Output Voltage VOUT (mA) 1.9 1.5 1.5 10000 FET:SUD30N03 5.1 5.0 VIN:8V, 15V, 20V 4.9 4.8 4.7 4.7 10 20 FET:SUD30N03 2.0 Output Voltage VOUT (mA) Output Voltage VOUT (mA) 2.0 VOUT vs. IOUT FET:IRF7313 100 1000 Output Current IOUT (mA) 10000 10 100 1000 Output Current IOUT (mA) 10000 Data Sheet ud200528 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (2) Output Voltage vs. Output Current <MODE: Low> VOUT vs. IOUT FET:IRF7313 2.0 2.0 1.9 1.9 Output Voltage VOUT (mA) Output Voltage VOUT (mA) VOUT vs. IOUT 1.8 VIN:5V, 8V, 15V, 20V 1.7 1.6 1.5 100 1000 Output Current IOUT (mA) VOUT vs. IOUT 3.5 VIN:5V, 8V, 15V, 20V 1.7 1.6 10000 3.3 VIN:5V, 8V, 15V, 20V 3.1 100 1000 Output Current IOUT (mA) VOUT vs. IOUT FET:IRF7313 3.4 3.2 10 10000 FET:SUD30N03 3.5 Output Voltage VOUT (mA) Output Voltage VOUT (mA) 1.8 1.5 10 3.4 3.3 VIN:5V, 8V, 15V, 20V 3.2 3.1 3.0 3.0 10 100 1000 Output Current IOUT (mA) VOUT vs. IOUT 10 10000 5.2 5.2 5.1 5.1 5.0 VIN:8V, 15V, 20V 4.9 4.8 4.7 100 1000 Output Current IOUT (mA) VOUT vs. IOUT FET:IRF7313 Output Voltage VOUT (mA) Output Voltage VOUT (mA) FET:SUD30N03 10000 FET:SUD30N03 5.0 VIN:8V, 15V, 20V 4.9 4.8 4.7 10 Data Sheet ud200528 100 1000 Output Current IOUT (mA) 10000 10 100 1000 Output Current IOUT (mA) 10000 21 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (3) Efficiency vs. Output Current <MODE: High> EFFI. vs. IOUT VOUT:1.8V, FET:IRF7313 100 100 80 Efficiency EFFI. (%) Efficiency EFFI. (%) 80 60 40 VIN:5V, 8V, 15V, 20V 10 100 1000 Output Current IOUT (mA) VIN:5V, 8V, 15V, 20V 10 10000 EFFI vs. IOUT VOUT:3.3V, FET:IRF7313 100 100 1000 Output Current IOUT (mA) 10000 EFFI. vs. IOUT VOUT:3.3V, FET:SUD30N03 100 80 Efficiency EFFI. (%) 80 Efficiency EFFI. (%) 40 0 0 60 40 VIN:5V, 8V, 15V, 20V 60 40 VIN:5V, 8V, 15V, 20V 20 20 0 0 10 100 1000 Output Current IOUT (mA) 10 10000 EFFI. vs. IOUT VOUT:5.0V, FET:IRF7313 100 100 1000 Output Current IOUT (mA) 10000 EFFI. vs. IOUT VOUT:5.0V, FET:SUD30N03 100 80 Efficiency EFFI. (%) 80 Efficiency EFFI. (%) 60 20 20 60 40 VIN:8V, 15V, 20V 20 60 40 VIN:8V, 15V, 20V 20 0 0 10 22 EFFI. vs. IOUT VOUT:1.8V, FET:SUD30N03 100 1000 Output Current IOUT (mA) 10000 10 100 1000 Output Current IOUT (mA) 10000 Data Sheet ud200528 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (4) Efficiency vs. Output Current <MODE: Low> EFFI. vs. IOUT EFFI. vs. IOUT VOUT:1.8V, FET:IRF7313 100 80 Efficiency EFFI. (%) Efficiency EFFI. (%) 80 60 VIN:5V, 8V, 15V, 20V 40 60 VIN:5V, 8V, 15V, 20V 40 20 20 0 0 10 100 1000 Output Current IOUT (mA) 10 10000 EFFI. vs. IOUT VOUT:3.3V, FET:IRF7313 100 10000 VOUT:3.3V, FET:SUD30N03 100 Efficiency EFFI. (%) 80 60 40 VIN:5V, 8V, 15V, 20V 20 60 40 VIN:5V, 8V, 15V, 20V 20 0 0 10 100 1000 Output Current IOUT (mA) 10 10000 EFFI. vs. IOUT 100 1000 Output Current IOUT (mA) 10000 EFFI. vs. IOUT VOUT:5.0V, FET:IRF7313 100 VOUT:5.0V, FET:SUD30N03 100 80 80 Efficiency EFFI. (%) Efficiency EFFI. (%) 100 1000 Output Current IOUT (mA) EFFI. vs. IOUT 80 Efficiency EFFI. (%) VOUT:1.8V, FET:SUD30N03 100 60 40 VIN:8V, 15V, 20V 20 60 40 VIN:8V, 15V, 20V 20 0 0 10 Data Sheet ud200528 100 1000 Output Current IOUT (mA) 10000 10 100 1000 Output Current IOUT (mA) 10000 23 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (5) Ripple Voltage vs. Output Current <MODE: High, Coil: CDRH127/LD-7R4> Vripple vs. IOUT FET:IRF7313, VIN=5V, VOUT=3.3V 80 Ripple Voltage Vripple (mV) Ripple Voltage Vripple (mV) 80 60 CL:150μ F (OS-CON SANYO) 40 CL:300μ F (OS-CON SANYO) 20 Vripple vs. IOUT FET:SUD30N03, VIN=5V, VOUT=3.3V 60 CL:150μ F (OS-CON SANYO) 40 CL:300μ F (OS-CON SANYO) 20 0 0 10 100 1000 Output Current IOUT (mA) 10 10000 FET:IRF7313, VIN=15V, VOUT=5.0V CL:150μ F (OS-CON SANYO) 40 20 FET:SUD30N03, VIN=15V, VOUT=5.0V 80 Ripple Voltage Vripple (mV) Ripple Voltage Vripple (mV) 60 10000 Vripple vs. IOUT Vripple vs. IOUT 80 100 1000 Output Current IOUT (mA) CL:150μ F (OS-CON SANYO) 60 40 20 CL:300μ F (OS-CON SANYO) CL:300μ F (OS-CON SANYO) 0 0 10 100 1000 Output Current IOUT (mA) 10 10000 100 1000 Output Current IOUT (mA) 10000 (6) FB Voltage Temperature Characteristics 1.04 FB Voltage VFB (V) VFB (V) 1.02 1.00 0.98 0.96 0.94 -50 0 Topr ( ℃ ) 50 Temperature Topr(℃) 24 100 VFB Temperature coefficient (ppm/℃,25℃-based) VFB vs. Topr VFB Temperature coefficient vs. Topr (25℃ -based) 100 50 0 -50 -100 -50 0 Topr ( ℃ ) 50 100 Temperature Topr(℃) Data Sheet ud200528 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (7) Oscillation Frequency Temperature Characteristics 400 FOSC(kHz) 350 300 250 200 -50 0 50 Topr ( ℃Topr(℃) ) Temperature 100 FOSC Temperature coefficient (ppm/℃,25℃-based) FOSC vs. Topr FOSC Temperature Coefficient vs. Topr (25℃ -based) 3000 2000 1000 0 -1000 -2000 -3000 -50 0 50 100 Topr ( ℃ ) Temperature Topr(℃) (8) Supply Current 1 & 2 Temperature Characteristics IDD2 vs. Topr 800 800 700 700 Supply Current 2 IDD2 (A) Supply Current 1 IDD1 (μ A) IDD1 vs. Topr 600 500 400 300 200 -50 0 50 100 Topr ( ℃ ) Temperature Topr(℃) 600 500 400 300 200 -50 0 50 100 Temperature Topr ( ℃Topr(℃) ) (9) Standby Current Temperature Characteristics ISTB vs. Topr Standby Current ISTB (μ A) 10 8 6 4 2 0 -50 0 50 100 Topr (Topr(℃) Temperature ℃) Data Sheet ud200528 25 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) VLOUT vs. Topr VD Output Volage VLOUT (V) 4.2 4.1 4.0 3.9 3.8 -50 0 50 100 Temperature Topr(℃) Topr ( ℃ ) VLOUT Temperature coefficient (ppm/℃,25℃-based) (10) VR Output Voltage Temperature Characteristics VLOUT Temperature coefficient vs. Topr (25℃ -based) 100 50 0 -50 -100 (11) VD Detect Voltage Temperature Characteristics -50 0 50 (12) VD Release Voltage Temperature Characteristics VDR vs. Topr 1.00 0.95 0.95 Release Voltage VDR (V) Detect Voltage VDF (V) VDF vs. Topr 1.00 0.90 0.85 0.80 -50 0 100 Temperature Topr(℃) Topr ( ℃ ) 50 0.90 0.85 0.80 100 -50 Temperature Topr(℃) 0 50 100 Topr ( ℃Topr(℃) ) Temperature Topr ( ℃ ) (13) CE "H", "L" Voltage Temperature Characteristics VCEL vs. Topr 1.4 1.2 1.2 CE "L" Voltage VCEL (V) CE "H" Voltage VCEH (V) VCEH vs. Topr 1.4 1.0 0.8 0.6 0.4 0.8 0.6 0.4 0.2 0.2 -50 0 50 Temperature Topr ( Topr(℃) ) ℃ 26 1.0 100 -50 0 50 100 Temperature Topr(℃) Topr ( ℃ ) Data Sheet ud200528 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (14) MODE "H", "L" Voltage Temperature Characteristics VMODEL vs. Topr 1.4 1.2 1.2 MODE "L" Voltage VMODEL(V) MODE "H" Voltage VMODEH(V) VMODEH vs. Topr 1.4 1.0 0.8 0.6 0.4 0.2 1.0 0.8 0.6 0.4 0.2 -50 0 50 100 -50 Temperature Topr ( ℃Topr(℃) ) 50 100 ℃ (16) Short Protection Circuit Operation Voltage Temp. Characteristics VSENSE vs. Topr VSHORT vs. Topr VIN:5V, VOUT:1.8V, RSENSE:33mΩ , L:6.1μ H 0.18 0.16 0.14 0.12 0.10 -50 0 50 100 Temperature Topr ( ℃Topr(℃) ) Short Protection Circuit Operating Voltage VSHORT (V) (15) Sense Voltage Temperature Characteristics 0.20 Sense Voltage VSENSE (V) 0 Temperature Topr ( Topr(℃) ) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 -50 0 50 100 Topr ( ℃Topr(℃) ) Temperature (17) U.V.L.O. Voltage Temperature Characteristics UVLO vs. Topr U.V.L.O. Voltage UVLO (V) 2.5 2.0 1.5 1.0 0.5 -50 Data Sheet ud200528 0 50 Topr ( ℃ )Topr(℃) Temperature 100 27 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (18) Load Transient Response Characteristics <MODE: High> <Condition> VIN: 5V VOUT: 1.8V IOUT:0A 1A <Condition> VIN: 15V VOUT: 1.8V IOUT:0A 1A <Condition> VIN: 5V VOUT: 3.3V IOUT:0A 1A 28 MODE: High FET:IRF7313 (International Rectifier) RSENSE:33mΩ MODE: High FET:IRF7313 (International Rectifier) RSENSE:33mΩ MODE: High FET:IRF7313 (International Rectifier) RSENSE:33mΩ CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) Data Sheet ud200528 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (18) Load Transient Response Characteristics <MODE: High> (Continued) <Condition> VIN: 15V VOUT: 3.3V IOUT:0A 1A <Condition> VIN: 5V VOUT: 1.8V IOUT:0A 1A <Condition> VIN: 15V VOUT: 1.8V IOUT:0A 1A Data Sheet ud200528 MODE: High FET:IRF7313 (International Rectifier) RSENSE:33mΩ MODE: High FET: SUD30N03 (Vishay) RSENSE:33mΩ MODE: High FET:SUD30N03 (Vishay) RSENSE:33mΩ CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) 29 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (18) Load Transient Response Characteristics <MODE: High> (Continued) <Condition> VIN: 5V VOUT: 3.3V IOUT:0A 1A <Condition> VIN: 15V VOUT: 3.3V IOUT:0A 1A 30 MODE: High FET:SUD30N03 (Vishay) RSENSE:33mΩ MODE: High FET: SUD30N03 (Vishay) RSENSE:33mΩ CL:150μF (OS-CON, SANYO) L:CDRH127/LD-7R4 (SUMIDA) CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) Data Sheet ud200528 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (19) Load Transient Response Characteristics <MODE: Low> <Condition> VIN: 5V VOUT: 1.8V IOUT:0A 1A <Condition> VIN: 5V VOUT: 1.8V IOUT:0A 1A Data Sheet ud200528 MODE: Low FET:IRF7313 (International Rectifier) RSENSE:33mΩ MODE: Low FET: SUD30N03 (Vishay) RSENSE:33mΩ CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) 31 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (20) Latch Protection Circuit Operating Waveform <MODE: High> <Condition> VIN: 5V VOUT: 3.3V MODE: High Topr : - 40℃ FET: SUD30N03 (Vishay) RSENSE:33mΩ CPRO: ceramic 4700pF CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) Topr : 25℃ Topr : 85℃ 32 Data Sheet ud200528 XC9213 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (21) Short-circuit Protection Circuit Operation Waveform <Condition> VIN: 5V VOUT: 3.3V MODE: High FET: SUD30N03 (Vishay) RSENSE:33mΩ CPRO: ceramic 4700pF CL:150μF (OS-CON, SANYO) L: CDRH127/LD-7R4 (SUMIDA) Topr : 25℃ Topr : - 40℃ Topr : 85℃ (22) Soft-start Circuit Operation Waveform <Condition> VIN: 5V VOUT: 3.3V IOUT=100mA Data Sheet ud200528 MODE: High Css: 4700pF <Condition> VIN: 20V VOUT: 15V IOUT=100mA MODE: High Css: 4700pF 33