XC6205 Series High Speed LDO Regulators Preliminary Low ESR Cap. Compatible, Output On/Off Control February 07, 2003 Ver. 2 CMOS Low Power Consumption 70µA Maximum Output Current : 150mA Highly Accurate : ± 2% (± 30mV less than 1.5V) Output Voltage Range : 0.9V ~ 1.75V (50mV Step) High Ripple Rejection : 60dB Low Noise : 30µVrms Low ESR capacitor compatible General Description Applications z z z z z z z Mobile phones, Cordless phones Wireless communication equipment Portable games Cameras, Video recorders Portable AV equipment Reference voltage Battery powered equipment Features The XC6205 series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS processes. The series achieves high ripple rejection and low dropout and consists of a voltage reference, an error amplifier, a current limiter and a phase compensation circuit plus a driver transistor. Output voltage is selectable in 50mV increments within a range of 0.9V ~ 1.75V. The series is also compatible with low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations due to the excellent transient response of the series. The current limiter's foldback circuit also operates as a short protect for the output current limiter and the output pin. The CE function enables the output to be turned off, resulting in greatly reduced power consumption. Maximum Output Current : 150mA Maximum Operating Voltage : 2.0V ~ 10V Output Voltage Range : 0.9V~1.75V(50mV Step) Highly Accurate : ±2% (VOUT>1.5V) : ±30mV (VOUT≤1.5V) Low Power Consumption : TYP 70µA Standby Current : Less than 0.1µA (TYP) Low Noise : 30µVrms (TYP) High Ripple Rejection : 60dB (10kHz) Operating Temperature Range : -40OC ~ +85OC Low ESR Capacitor Compatible : Ceramic capacitor Ultra Small Packages : SOT-25 (SOT-23-5) SOT-89-5 USP-6B Typical Application Electrical Characteristics Load Transient Response XC6205B092 VIN=2V, tr=tf=5µsec CIN=1µF(ceramic), CL=4.7µF(ceramic) 250 0.95 200 CIN 1µF Output Voltage 0.90 150 0.85 100 50mA 0.80 Output Current 50 1mA 0.75 0 Time (40µsec/div) 1 Output Current (mA) NC 4 3 CE CL 2.2µF Output Voltage (V) 2 VSS VOUT 1.00 5 1 VIN XC6205 Series High Speed LDO Regulators Preliminary Low ESR Cap. Compatible, Output On/Off Control Pin Assignment SOT-25 1 2 3 4 5 Block Diagram PIN NUMBER SOT-89-5 USP-6B 4 1 2 5 3 6 1 2, 4 5 3 PIN NAME FUNCTION VIN VSS CE NC VOUT Input Ground ON/OFF Control No Connection Output VIN CE ON/OFF Control each circuit Current Limiter VOUT R2 Pin Configuration VOUT (NC) 4 5 R1 VOUT VSS 2 5 VIN 1 6 CE NC 2 5 VSS VOUT 3 1 VIN 2 VSS 3 CE 1 NC SOT-25 (SOT-23-5) (TOP VIEW) 2 VSS VSS Voltage Reference VIN 4 * The diode in the above diagram is for the IC's protection. 4 NC 3 CE SOT-89-5 (TOP VIEW) USP-6B (TOP VIEW) Selection Guide The following options for the CE pin logic and internal pull-up/down are available: Active 'High' + no pull-down resistor built-in (standard) Active 'High' + 300MΩ pull-down resistor built-in <between CE-V SS> (semi-custom) Active 'Low' + no pull-up resistor built-in (semi-custom) Active 'Low' + 300MΩ pull-up resistor built-in <between V IN-CE> (semi-custom) Note: *With the pull-up resistor or pull-down resistor built-in types, the supply current during operation will increase by VIN / 300MΩ (TYP.). Ordering Information XC6205123456 DESIGNATOR SYMBOL DESCRIPTION A Active 'High' (pull-down resistor built in) B Active 'High' (no pull-down resistor built in) 1 C Active 'Low' (pull-up resistor built in) D Active 'Low' (no pull-up resistor built in) DESIGNATOR SYMBOL Output Voltage : 100mV Step 2 3 Integer Accuracy : within ±2% e.g. 2=0, 3=9, 4=2 ⇒ 0.9V 4 Output Voltage : 50mV Step A Accuracy : within ±2% e.g. 2=1, 3=3, 4=A ⇒ 1.35V 5 M D Output Voltage : 2 DESCRIPTION Package Type : SOT-25(SOT-23-5) USP - 6B Device Orientation : 6 e.g. 1.5V = 2 : 1, 3 : 5 2 R Embossed Tape : Standard Feed L Embossed Tape : Reverse Feed XC6205 Series High Speed LDO Regulators Preliminary Low ESR Cap. Compatible, Output On/Off Control Absolute Maximum Rating PARAMETER RATINGS Input Voltage SYMBOL VIN 12 V Output Current IOUT mA Output Voltage VOUT 500 VSS -0.3 ~ VIN +0.3 CE Input Voltage VCE VSS -0.3 ~ VIN +0.3 V Power Dissipation SOT-25(SOT-23-5) UNITS V 250 Pd USP-6B mW 100 Operating Ambient Temperature Topr -40 ~ +85 O Storage Temperature Tstg -55 ~ +125 O Electrical Characteristics C C XC6205x152 (1.5V) Ta=25OC PARAMETER SYMBOL CONDITIONS Output Voltage VOUT (E) IOUT=30mA Maximum Output Current IOUTMAX Load Regulation ∆VOUT 1mA≤IOUT≤100mA 15 Vdif1 IOUT=30mA 500 mV Vdif2 IOUT=100mA Supply Current IDD VCE=VIN 600 70 mV µA 2 Standby Current Istby VCE=VSS 0.01 0.10 µA 2 ∆VOUT / VOUT(T)+1.0V≤VIN≤10V ∆VIN ⋅ VOUT IOUT=30mA 0.01 0.20 %/V 1 10.0 V - ppm/OC 1 60 dB 4 30 µVrms 3 300 mA 1 Dropout Voltage Line Regulation Output Voltage ∆VOUT / IOUT=30mA ∆Topr ⋅ VOUT -40OC≤Topr≤85OC Ripple Rejection Rate PSRR IOUT=50mA, f=10kHz Output Noise en Current Limiter Ilim Ishort CE "High" Voltage VCEH CE "Low" Voltage VCEL CE "High" Current ICEH CE "Low" Current ICEL MAX × 0.98 VOUT(T) × 1.02 1.470 1.500 1.530 2.0 Temperature Characteristics Short-circuit Current TYP 150 VIN Input Voltage MIN 50 100 300Hz ~ 50kHz VIN=VOUT+1.5V, VOUT=VSS UNITS CIRCUIT V 1 mA 1 mV 1 mA 1 1.60 VIN V 2 0.25 -0.10 0.10 V µA 2 VCE=VIN VCE=VSS -0.10 0.10 µA 2 50 NOTE (NOTE 1) VOUT(T)=Specified Output Voltage (NOTE 2) VOUT(E)=Effective Output Voltage (I.e. the output voltage when "V OUT(T)+1.0V" is provided at the V IN pin while maintaining a certain I OUT value). (NOTE 3) Vdif={VIN1 (NOTE5) -VOUT1 (NOTE4) 1 } (NOTE 4) VOUT 1 = A voltage equal to 98% of the Output Voltage whenever an amply stabilized IOUT {VOUT(T) + 1.0V} is input. (NOTE 5) VIN1=The Input Voltage when VOUT1 appears as Input Voltage is gradually decreased. (NOTE 6) Unless otherwise stated, V IN=VOUT(T)+1.0V 3 2 XC6205 Series High Speed LDO Regulators Preliminary Low ESR Cap. Compatible, Output On/Off Control ! Test Circuits Circuit 1 VIN CE V VSS CIN=1.0µF (ceramic) A VOUT CL=2.2µF (ceramic) RL V V Circuit 2 A VIN VOUT CE A OPEN VSS Circuit 3 VOUT VIN CE CIN=1.0µF (ceramic) VSS CL=2.2µF (ceramic) F.F.T IOUT=10mA Circuit 4 VIN VIN={VOUT+1} VDC +0.5Vp-pAC CE V IOUT=50mA VOUT VSS 4 CL=2.2µF (ceramic) V XC6205 Series High Speed LDO Regulators Preliminary Low ESR Cap. Compatible, Output On/Off Control ! Operational Explanation Output voltage control with the XC6205 series : VIN CE ON/OFF Control The voltage divided by resistors R1 & R2 is compared with the internal reference voltage by the error amplifier. each circuit The P-Channel MOSFET, which is connected to the VOUT pin, is then driven by the subsequent output signal. The output voltage at the VOUT pin is controlled & stabilized by a system of negative feedback. Current Limiter VOUT R2 The current limit circuit and short protect circuit operate in relation to the level of output current. Further, the IC's internal circuitry can be shutdown via the CE pin's signal. R1 Voltage Reference VSS Low ESR Capacitors With the XC6205 series, a stable output voltage is achievable even if used with low ESR capacitors as a phase compensation circuit is built-in. In order to ensure the effectiveness of the phase compensation, we suggest that an output capacitor (CL) is connected as close as possible to the output pin (V OUT) and the VSS pin. Please use an output capacitor with a capacitance value as shown in the figure below. Also, please connect an input capacitor (CIN) of 0.1µF between the VIN pin and the VSS pin in order to ensure a stable power input. Recommended Output Capacitor Values VOUT CL 0.9V ~ 1.2V 4.7µF 1.25V ~ 1.75V 2.2µF Current Limiter, Short-Circuit Protection The XC6205 series includes a combination of a fixed current limiter circuit & a foldback circuit which aid the operations of the current limiter and circuit protection. When the load current reaches the current limit level, the fixed current limiter circuit operates and output voltage drops. As a result of this drop in output voltage, the foldback circuit operates, output voltage drops further and output current decreases. When the output pin is shorted, a current of about 50mA flows. However, when the input/output voltage differential is quite small, this current will be about 200mA. CE Pin The IC's internal circuitry can be shutdown via the signal from the CE pin with the XC6205 series. In shutdown mode, output at the VOUT pin will be pulled down to the VSS level via R1 & R2. The operational logic of the IC's CE pin is selectable (please refer to the selection guide on page 2). Note that as the standard XC6205B type is ' High Active/No Pull Down', operations will become unstable with the CE pin open. Although the CE pin is equal to an inverter input with CMOS hysteresis, with either the pull-up or pull-down options, the CE pin input current will increase when the IC is in operation. We suggest that you use this IC with either a VIN voltage or a VSS voltage input at the CE pin. If this IC is used with the correct specifications for the CE pin, the IC will operate normally. However, supply current may increase as a result of through current in the IC's internal circuitry. 5 XC6205 Series High Speed LDO Regulators Preliminary Low ESR Cap. Compatible, Output On/Off Control Minimum Operating Voltage In order to stablize the IC's operations, an input voltage of more than 2.0V is needed. Should the input voltage be less than 2.0V, the output voltage may not be regulated correctly. (Please refer to the graph data below.) 1 When VIN is less than 2.0V, the CE pin remains in standby mode. When VIN rises above 2.0V, the power supply will turn ON. 2 The input power supply will begin to rise after a few hundred µsec. (Please also refer to the transient response characteristics.) " Input Voltage vs. Output Voltage Output Voltage VOUT (V) XC6205B092 1.2 IOUT=1mA CIN=4.7µ F(ceramic), CL=4.7µ F(ceramic) 1.0 0.8 0.6 Topr= -40OC 25OC 85OC 0.4 0.2 0.0 0.0 2.0 4.0 6.0 8.0 10.0 Input Voltage VIN (V) " Enable Response Time " Turn-On Response Time XC6205B092 XC6205B092 CL=4.7µ F(ceramic) VIN=2.0V,CL=4.7µ F(ceramic) Output Voltage 1.0 -2 -4 IOUT=1mA 30mA 100mA 0.5 0.0 -6 2.0 2 1.5 0 Output Voltage 1.0 -2 -4 IOUT=1mA 30mA 100mA 0.0 -6 TIME (40usec/div) TIME (40usec/div) ! Notes on Use 1 Please use this IC within the stated absolute maximum ratings. The IC is liable to malfunction should the ratings be exceeded. 2 Where wiring impedance is high, operations may become unstable due to noise and/or phase lag depending on output current. Please strengthen V IN and VSS wiring in particular. 3 Please wire the input capacitor (CIN) and the output capacitor (CL) as close to the IC as possible. 6 0.5 Output Voltage (V) 1.5 0 Input Voltage (V) 2.0 Output Voltage (V) CE Input Voltage (v) Input Voltage CE Input Voltage 2 2.5 4 2.5 4 XC6205 Series High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Preliminary XC6205 (1) Output Voltage vs. Output Current XC6205x152 XC6205x092 VIN=2.0V CIN=1.0µF(ceramic), CL=4.7µF(ceramic) 1.6 Output Voltage VOUT (V) Output Voltage VOUT (V) 1.0 0.9 Topr= -40OC 25OC 85OC 0.8 VIN=2.5V CIN=1.0µF(ceramic), CL=2.2µF(ceramic) 0.7 0.6 1.5 Topr= -40OC 25OC 85OC 1.4 1.3 1.2 0 40 80 120 160 0 200 40 80 120 160 200 Output Current IOUT (mA) Output Current IOUT (mA) (2) Output Voltage vs. Output Current (current limit) XC6205x152 XC6205x092 VIN=2.0V CIN=1.0µF(ceramic), CL=4.7µF(ceramic) 1.8 Output Voltage VOUT (V) Output Voltage VOUT (V) 1.2 1.0 0.8 Topr= -40OC 25OC 85OC 0.6 0.4 0.2 1.6 1.4 1.2 Topr= -40OC 25OC 85OC 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0 100 200 300 0 400 200 300 400 Output Current IOUT (mA) XC6205x092 XC6205x152 Output Voltage VOUT (V) 0.8 2.5V 5.0V, 10.0V 3.0V 0.4 0.2 Topr=25OC CIN=1.0µF(ceramic), CL=2.2µF(ceramic) 1.8 1.0 0.6 100 Output Current IOUT (mA) Topr=25OC CIN=1.0µF(ceramic), CL=4.7µF(ceramic) 1.2 Output Voltage VOUT (V) VIN=2.5V CIN=1.0µF(ceramic), CL=4.7µF(ceramic) VIN=2.0V 1.5 3.0V 1.2 5.0V, 10.0V 0.9 2.5V 0.6 VIN=2.0V 0.3 0.0 0.0 0 100 200 300 0 400 100 200 300 Output Current IOUT (mA) Output Current IOUT (mA) 7 400 XC6205 Series High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Preliminary (3) Output Voltage vs. Input Voltage XC6205x092 1.2 1.0 0.9 0.8 IOUT= 1mA = 30mA = 100mA 0.7 0.6 0.5 0.90 0.85 IOUT= 1mA = 30mA = 100mA 0.80 0.75 0.5 1.0 1.5 2.0 2.5 2 8 10 XC6205x152 XC6205x152 1.4 1.3 1.2 1.1 12 Topr=25OC CIN=1.0µF(ceramic), CL=2.2µF(ceramic) 1.80 Output Voltage VOUT (V) 1.5 6 Input Voltage VIN (V) IOUT= 1mA = 30mA = 100mA 1.6 4 Input Voltage VIN (V) Topr=25OC CIN=1.0µF(ceramic), CL=2.2µF(ceramic) 1.7 Output Voltage VOUT (V) Topr=25OC CIN=1.0µF(ceramic), CL=4.7µF(ceramic) 0.95 1.1 Output Voltage VOUT (V) Output Voltage VOUT (V) XC6205x092 Topr=25OC CIN=1.0µF(ceramic), CL=4.7µF(ceramic) 1.70 1.60 1.50 1.40 IOUT= 1mA = 30mA = 100mA 1.30 1.20 1.10 1.00 1.0 1.0 1.5 2 2.0 4 6 8 10 12 Input Voltage VIN (V) Input Voltage VIN (V) (4) Dropout Voltage vs. Output Current XC6205x152 XC6205x092 CIN=1.0µF(ceramic), CL=4.7µF(ceramic) 1.2 1.0 0.8 0.6 Topr= 85OC 25OC - 40OC 0.4 CIN=1.0µF(ceramic), CL=2.2µF(ceramic) 1.4 Dropout Voltage Vdif (V) Dropout Voltage Vdif (V) 1.4 0.2 1.2 Topr= 85OC 25OC - 40OC 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0 40 80 120 160 0 200 40 80 120 160 Output Current IOUT (mA) Output Current IOUT (mA) 8 200 XC6205 Series High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Preliminary (5) Supply Current vs. Input Voltage XC6205x092 XC6205x092 80 70 Supply Current ISS (µA) Supply Current ISS (µA) 80 60 50 40 30 Topr= 85OC 25OC - 40OC 20 10 0 70 60 Topr= 85OC 25OC - 40OC 50 40 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2 3 Input Voltage VIN (V) 4 5 6 7 8 9 Input Voltage VIN (V) XC6205x152 XC6205x152 90 80 70 Supply Current ISS (µA) Supply Current ISS (µA) 10 60 50 40 Topr= 85OC 25OC - 40OC 30 20 10 0 80 70 Topr= 85OC 25OC - 40OC 60 50 40 0.0 0.5 1.0 1.5 2.0 2.5 Input Voltage VIN (V) 2 3.0 3 4 5 6 7 8 9 Input Voltage VIN (V) 10 (6) Output Voltage vs. Ambient Temperature XC6205x152 XC6205x092 VIN=2.0V CIN=1.0µF(ceramic), CL=4.7µF(ceramic) Output Voltage VOUT (V) Output Voltage VOUT (V) 1.1 1.0 0.9 IOUT= 1mA = 10mA = 30mA = 100mA = 150mA 0.8 0.7 VIN=2.5V CIN=1.0µF(ceramic), CL=2.2µF(ceramic) 1.7 1.6 1.5 IOUT= 1mA = 10mA = 30mA = 100mA = 150mA 1.4 1.3 1.2 0.6 -50 -20 10 40 70 -50 100 -20 10 40 70 Ambient Temperature Topr (OC) O Ambient Temperature Topr ( C) 9 100 XC6205 Series High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Preliminary (7) Supply Current vs. Ambient Temperature XC6205x092 VIN=2.0V 80 60 40 20 80 60 40 20 0 0 -50 -20 10 40 70 -50 100 (8) CE Pin Threshold Voltage vs. Ambient Temperature XC6205xxx2 VIN=VOUT+1V, RL=100Ω CIN=1.0µF(ceramic), CL=4.7µF(ceramic) CE "High" Voltage 1.50 1.00 0.50 CE "Low" Voltage 0.00 -50 -25 0 25 50 75 10 40 70 100 Ambient Temperature Topr ( C) Ambient Temperature Topr ( C) 2.00 -20 O O Threshold Voltage VCEH, VCEL(V) VIN=2.5V 100 Supply Current ISS (mA) Supply Current ISS (µA) XC6205x152 100 O Ambient Temperature Topr ( C) 10 XC6205 Series High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Preliminary (9) Load Transient Response XC6205x092 XC6205x092 Output Voltage 1.00 75 0.95 60 0.90 45 0.85 Output Current 0.80 30mA 30 0.75 1mA 15 Output Voltage (V) 0.90 200 0.85 150 Output Current 0.80 100mA 0.75 1mA 50 Time (40µsec/div) XC6205x152 XC6205x152 VIN=2.5V CIN=1.0µF(ceramic),CL=2.2µF(ceramic) VIN=2.5V CIN=1.0µF(ceramic),CL=2.2µF(ceramic) 1.50 1.60 75 1.55 60 1.45 45 Output Current 1.40 30mA 30 1.35 1mA 15 1.30 Output Voltage (V) Output Voltage 90 Output Current (mA) 1.60 Output Voltage (V) 100 0 Time (40µsec/div) 1.55 250 Output Voltage 0.70 0 0.70 300 300 250 Output Voltage 1.50 200 1.45 150 Output Current 1.40 100mA 100 1.35 1mA 50 1.30 0 Output Current (mA) 0.95 90 Output Current (mA) Output Voltage (V) 1.00 VIN=2.0V CIN=1.0µF(ceramic),CL=4.7µF(ceramic) Output Current (mA) VIN=2.0V CIN=1.0µF(ceramic),CL=4.7µF(ceramic) 0 Time (40µsec/div) Time (40µsec/div) (10) Input Transient Response 1 XC6205x152 XC6205x092 CL=2.2µF(ceramic) 0 1.5 Output Voltage -2 -4 1.0 -6 1mA 30mA 100mA Input Voltage (V) 2.0 Output Voltage (V) Input Voltage (V) 2 IOUT= 5.0 2.5 Input Voltage 3.0 Input Voltage 2.5 2.5 2.0 0.0 Output Voltage 1.5 -2.5 1.0 -5.0 IOUT= 0.5 -7.5 0.0 Time (40µsec/div) 11 0.5 0.0 -10.0 Time (40µsec/div) 1mA 30mA 100mA Output Voltage (V) CL=4.7µF(ceramic) 4 XC6205 Series High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Preliminary (11) Input Transient Response 2 XC6205x092 XC6205x092 IOUT=1mA,CL=4.7µF(ceramic) 1.2 Input Voltage 4 1.0 Output Voltage 1 0.9 0 0.8 -1 0.7 3 1.1 2 1.0 Output Voltage 1 0.9 0 0.8 -1 0.7 Time (40µsec/div) Time (40µsec/div) XC6205x152 XC6205x152 IOUT=1mA,CL=2.2µF(ceramic) IOUT=100mA,CL=2.2µF(ceramic) 4 2 1.6 Output Voltage 1 1.5 0 1.4 -1 1.3 Output Voltage (V) 1.7 Input Voltage Input Voltage (V) 1.8 3 1.8 1.7 Input Voltage 2 1.6 Output Voltage 1 1.5 0 1.4 -1 1.3 Output Voltage (V) 2 4 Input Voltage (V) 1.2 Output Voltage (V) 1.1 Input Voltage (V) 3 3 IOUT=100mA,CL=4.7µF(ceramic) Input Voltage Output Voltage (V) Input Voltage (V) 4 Time (40µsec/div) Time (40µsec/div) (12) Enable Response Time XC6205x152 XC6205B092 VIN=2.0V, CL=4.7µF(ceramic) VIN=2.5V, CL=2.2µF(ceramic) 2.5 5.0 2 2.0 2.5 0 1.5 -4 Output Voltage IOUT= -6 1.0 1mA 30mA 100mA Input Voltage (V) -2 Output Voltage (V) Input Voltage (V) CE Input Voltage 2.5 0.0 2.0 Output Voltage -2.5 1.5 -5.0 1.0 IOUT= 0.5 -7.5 0.0 -10.0 12 1mA 30mA 100mA 0.5 0.0 Time (40µsec/div) Time (40µsec/div) 3.0 CE Input Voltage Output Voltage (V) 4 XC6205 Series High Speed LDO Regulators Low ESR Cap. Compatible, Output On/Off Control Preliminary (13) Ripple Rejection Rate XC6205x152 VIN=2.5VDC+0.5Vp-pAC IOUT=30mA, CL=4.7µF(ceramic) 90 Ripple Rejection Rate RR (dB) Ripple Rejection Rate RR (dB) XC6205x092 80 70 60 50 40 30 20 10 0 0.01 0.1 1 10 100 VIN=2.5VDC+0.5Vp-pAC IOUT=30mA, CL=2.2µF(ceramic) 90 80 70 60 50 40 30 20 10 0 0.01 Ripple Frequency f (kHz) 0.1 1 10 Ripple Frequency f (kHz) 13 100