XC9110/XC9111 Series ETR0406 004 PFM Controlled Step-Up DC/DC Converter / Controller ICs ■GENERAL DESCRIPTION The XC9110/9111 series is a group of PFM controlled step-up DC/DC converter/controller ICs designed to generate low supply voltage by the combination of PFM control and CMOS structure. The series is ideal for applications where a longer battery life is needed such as in portable communication equipment. With a built-in 2.5ΩN-channel driver transistor, the XC9110A/C/E and XC9111A/C/E types provide a step-up operation by using only a coil, a capacitor, and a diode connected externally. The XC9110/9111B, D and F versions can be used with an external transistor for applications requiring larger currents. Output voltage is internally programmable in a range from 1.5V to 7.0V in increments of 100mV (accuracy:±2.5%). Maximum oscillation frequency is set to 100kHz for XC9110/9111 series. (At light loads, it is set to 180kHz for the XC9111 series.) Options include products equipped with a CE pin (C and D versions) that allows the IC to be shut down thereby reducing supply current and with separated VDD/VOUT pins (E and F versions) to separate the power supply block and the output voltage detect block. With the XC9110 series, maximum duty cycle is set to 75% (VDD=3.3V) making it suitable for use with large current operations. The XC9111 series automatically switches duty ratio between 56% & 75% (VDD=3.3V) when it senses changes in load to drop output ripple voltage and can support both large and small currents. The external transistor types (B/D/F types) can be provided for applications, which require larger currents. ■FEATURES ■APPLICATIONS Operating (Input) Voltage Range : 0.9V ~ 10.0V Output Voltage Range : 1.5V~7.0V (100mV increments, accuracy ±2.5%) Maximum Oscillation Frequency : 100kHz (accuracy ±15%) 180kHz (for the XC9111 series, duty ratio: 56% at light loads) Built-in Switching N-ch Transistor : A/C/E type ON Resistance 2.5Ω (VDD=3.0V) External Transistor Types : B/D/F type Lx Limit Voltage : E type: more than VDD=2.0V : A/C type: more than VOUT=2.0V Low Supply Current : 2.0μA (When operating, VOUT=3V) Small Package : SOT-23 & SOT89 (for XC9111 series), SOT-25, USP-6C ●Mobile phones ●Various palm top equipment ●Cameras, VCRs ●Various portable equipment ■TYPICAL APPLICATION CIRCUIT ●C type circuit ■TYPICAL PERFORMANCE CHARACTERISTICS XC9111E331MR L=100μH(CR54), CL47μF(Tantalum) SD: XB01SB04A2BR 100 5 L 4 VIN + CIN 2 1 3 VOUT SD + CL (Tantalum) GND CE Efficiency:EFFI(%) 80 (TOP VIEW) SOT-25 3.0V 2.4V 60 1.5V 40 1.2V VIN=0.9V 20 0 0 50 1 00 150 2 00 Output Current:IOUT(mA) 250 3 00 1/35 XC9110/XC9111 Series ■PIN CONFIGURATION Lx/EXT V SS 5 4 1 2 3 CE/V OUT V OUT/V DD NC SOT-23 (TOP VIEW) USP-6C (BOTTOM VIEW) SOT-25 (TOP VIEW) SOT-89 (TOP VIEW) ■PIN ASSIGNMENT *The dissipation pad for the USP-6C package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the pin No.1. ●XC9111A/B PIN NUMBER SOT-23 SOT-89 A B A B 1 1 1 1 3 3 2 2 2 3 2 3 PIN NAME VSS VOUT LX EXT FUNCTIONS : Ground : Output Voltage Montior, Internal Power Supply : Switch : External Switching transistor drive <N-ch transistor drive) ●XC9110//9111C/D/E/F PIN NUMBER SOT-25 PIN NAME USP-6C C 4 D 4 E 2 4 F 2 4 C 6 D 6 E 1 6 F 1 6 VDD VSS - 5 - 5 - 4 - 4 EXT 5 - 5 - 4 - 4 - Lx 1 1 - - 3 3 - - CE 2 3 2 3 1 3 1 3 2/35 1 1 3 3 2,5 2,5 2,5 2,5 VOUT NC FUNCTIONS Internal Power Supply Ground External switching transistor drive <Connect to the gate pin of N-ch Power MOSFET> Switch Chip Enable <Connect to the VOUT pin when Active and the VSS pin when stand-by> Output voltage monitor No connection XC9110/XC9111 Series ■PRODUCT CLASSIFICATION ●Selection Guide ●Ordering Information XC9110①②③④⑤⑥ : PFM control, 75% duty XC9111①②③④⑤⑥ : PFM control, 56% / 75% duty variable DESIGNATOR DESCRIPTION ① CE Function ②③ Output Voltage Maximum Oscillation Frequency ④ SYMBOL A B C D E F 15 ~ 70 1 M ⑤ Package ⑥ Device Orientation P E R L DESCRIPTION : VDD / VOUT common type (for XC9111series) : VDD / VOUT common type (for XC9111series) : CE pin (5 pin) : CE pin (5 pin) : VDD / VOUT separated type (5 pin) : VDD / VOUT separated type (5 pin) : ex. 3.5V output → ②= 3, ③= 5 Built-in Transistor External Transistor Built-in Transistor External Transistor Built-in Transistor External Transistor : 100kHz : SOT-23 (for A and B types) Semi-Custom : SOT-25 (for C, D, F types) : SOT-89 (for A and B types) Semi-Custom : USP-6C (for C, D, F types) : Embossed tape, standard feed : Embossed tape, reverse feed 3/35 XC9110/XC9111 Series ■BLOCK DIAGRAMS ●XC9111 A and B series Note: The XC9110 series, Tr. Built-in type, uses the Lx pin and the XC9111 series, external Tr. Type, uses the EXT pin. The duty ratio of the XC9111 series automatically varies between 56% (oscillation frequency 180kHz) and 75% (oscillation frequency (FOSC) 100kHz). The VLx limit function only applies to the XC9110/9111 A types. * The duty ratio depends on power supply. Please refer to the electrical characteristics on duty against output voltage you use. ●XC9110 / 9111 C and D series Note: The XC9110 series, Tr. Built-in type, uses the Lx pin and the XC9111 series, external Tr. Type, uses the EXT pin. The XC9110 series' duty ratio is 75% and oscillation frequency (FOSC) is 100kHz. The duty ratio of the XC9111 series automatically varies between 56% (oscillation frequency 180kHz) and 75% (oscillation frequency (FOSC) 100kHz). The VLx limit function only applies to the XC9110/9111 C versions. * The duty ratio depends on power supply. Please refer to the electrical characteristics on duty against output voltage you use. 4/35 XC9110/XC9111 Series ■BLOCK DIAGRAMS ●XC9111 E and F series Note: The XC9110 series, Tr. Built-in type, uses the Lx pin and the XC9111 series, external Tr. Type, uses the EXT pin. The XC9110 / 9111 series E and F series have the VDD pin. The XC9110 series' duty ratio is 75% and oscillation frequency (FOSC) is 100kHz. The duty ratio of the XC9111 series automatically varies between 56% (oscillation frequency 180kHz) and 75% (oscillation frequency (FOSC) 100kHz). The VLx limit function only applies to the XC9110/9111 C versions. * The duty ratio depends on power supply. Please refer to the electrical characteristics on duty against output voltage you use. ■ ABSOLUTE MAXIMUM RATINGS Ta = 25℃ PARAMETER SYMBOL RATINGS UNITS VOUT Input Voltage VOUT – 0.3 ~ 12.0 V Lx Pin Voltage VLx – 0.3 ~ 12.0 V Lx Pin Current ILx 400 mA EXT Pin Voltage VEXT VSS – 0.3 ~ VOUT+0.3 V EXT Pin Current IEXT ±100 mA CE Input Voltage VCE – 0.3 ~ 12.0 V VDD Input Voltage VDD – 0.3 ~ 12.0 V SOT-23, 25 Power Dissipation SOT-89 250 Pd USP-6C Operating Temperature Range Storage Temperature Range 500 mW 100 Topr – 40 ~ + 85 ℃ Tstg – 55 ~ +125 ℃ * Define as VSS with a standard of all the voltage. 5/35 XC9110/XC9111 Series ■ELECTRICAL CHARACTERISTICS XC9111Axx1MR Ta = 25℃ PARAMETER SYMBOL CONDITIONS MIN. Output Voltage VOUT Connected to external components ×0.975 Output Voltage Temperature Characteristics △VOUT △VOUT・△topr Connected to external components - 40℃≦Topr≦85℃ - Maximum Input Voltage VIN TYP. MAX. UNIT CIRCUIT ×1.025 V ① ±100 - ppm/ ℃ ① VOUT 10 - - V ① - 0.8 0.9 V ① - - 0.8 V ② 0.7 - - V ① - E1-1(*) E1-2(*) μA ① Operating Start Voltage VST1 IOUT=1mA, Connected to external components Oscillation Start Voltage VST2 Applied 0.8V to VOUT, Vpull=1.0V Operating Hold Voltage VHLD Input Current at No Load IIN IOUT=1mA, Connected to external components IOUT=0mA (*1) Supply Current 1 (*2) IDD1 Applied (output voltage×0.95) to VOUT - E2-1(*) E2-2(*) μA ② Supply Current 2 Lx Switch ON Resistance Lx Leak Current Duty Ratio IDD2 RSWON ILxL DTY E7-1(*) E3-1(*) E4-1(*) E7-2(*) E3-2(*) E4-2(*) 1 E7-3(*) μA Ω μA % ② ② ③ ② Duty Ratio 2 DTY2 Applied (output voltage+0.5) to VOUT Same as IDD1, VLx=0.4V (*3) Same as IDD2, VLx=7V Same as IDD1, measure Lx waveform IOUT=1mA, measure Lx ON time. Connect to external components 48 56 64 % ① Maximum Oscillation Frequency MAXFOSC Same as IDD1 85 100 115 kHz ② Maximum Oscillation Frequency 2 MAXFOSC2 Same as IDD1 153 180 207 kHz ② Lx Limit Voltage (*4) VLxLMT Same as IDD1, VLx when max. oscillation frequency is more than double 0.7 - 1.1 V ② Efficiency (*5) EFFI Connect to external components - E8(*) - % ① Test condition : Unless otherwise specified, VIN=VOUT×0.6, IOUT=<C1(*)>, Vpull=5.0V NOTE: *1: TOREX SBD, XB01SB04A2BR is used, reverse current IR < 1μA (when reverse voltage VR = 10V is applied), in case of using selected parts. *2: Supply Current 1 is the value when the IC is constantly switching. In actual operation, the oscillator periodically switches, resulting in lower power consumption. Please refer to Input Current (IIN) under no load condition for the actual current, which is supplied from the input power supply (VIN). *3: Lx switch ON resistance can be calculated by (VLx x Rp) / (Vpull - VLx). * Change Vpull so that VLx will become 0.4V. *4: The Lx limit voltage function becomes stable when VOUT is over 2.0V. *5: EFFI={[output voltage]×(output current)} / [(input voltage)×(input current)]×100 *6: Please be aware of the absolute maximum ratings of the external components. (*): Please refer to the charts. 6/35 XC9110/XC9111 Series ■ELECTRICAL CHARACTERISTICS (Continued) Ta = 25℃ XC9111Bxx1MR PARAMETER SYMBOL CONDITIONS MIN. Output Voltage VOUT Connected to external components ×0.975 Output Voltage Temperature Characteristics △VOUT △VOUT・△topr Connected to external components - 40℃≦Topr≦85℃ - Maximum Input Voltage VIN TYP. MAX. UNIT CIRCUIT ×1.025 V ⑥ ±100 - ppm/ ℃ ⑥ VOUT 10 - - V - - 0.8 0.9 V ⑥ Operating Start Voltage VST1 IOUT=1mA, Connected to external components Oscillation Start Voltage VST2 Applied 0.8V to VOUT - - 0.8 V ⑦ Operation Hold Voltage VHLD IOUT=1mA, Connected to external components 0.7 - - V ⑥ Supply Current 1 (*1) IDD1 Applied (output voltage×0.95) to VOUT - E2-1(*) E2-2(*) μA ⑦ Supply Current 2 EXT ‘H’ ON Resistance EXT ‘L’ ON Resistance Duty Ratio IDD2 REXTH REXTL DTY E7-1(*) E3-1(*) E5-1(*) E6-1(*) E7-2(*) E3-2(*) E5-2(*) E6-2(*) E7-3(*) μA Ω Ω % ⑦ ② ② ⑦ Duty Ratio 2 DTY2 Applied (output voltage+0.5) to VOUT Same as IDD1, VEXT=VOUT-0.4V (*2) Same as IDD1, VEXT=0.4V (*3) Same as IDD1, measure Lx waveform IOUT=1mA, measure Lx ON time. Connect to external components 48 56 64 % ⑥ Maximum Oscillation Frequency MAXFOSC Same as IDD1 85 100 115 kHz ⑦ Maximum Oscillation Frequency 2 MAXFOSC2 Same as IDD1 153 180 207 kHz ⑦ Efficiency (*4) EFFI Connect to external components - E9(*) - % ⑥ Test condition : Unless otherwise specified, VIN=VOUT×0.6, IOUT=<C1(*)> NOTE: *1: Supply Current 1 is the value when the IC is constantly switching. In actual operation, the oscillator periodically switches, resulting in lower power consumption. *2: EXT ‘H’ ON resistance can be calculated by (0.4 x Rp) / ( VEXT – Vpull). * Change Vpull so that VEXT will become VOUT-0.4V. *3: EXT ‘L’ ON resistance can be calculated by (VEXT x Rp) / ( Vpull- VEXT). * Change Vpull so that VEXT will become 0.4V. *4: EFFI={[output voltage]×(output current)} / [(input voltage)×(input current)]×100 *5: Please be aware of the absolute maximum ratings of the external components. (*): Please refer to the charts. 7/35 XC9110/XC9111 Series ■ELECTRICAL CHARACTERISTICS (Continued) XC9110Cxx1MR, XC9111Cxx1MR Ta = 25℃ PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT CIRCUIT Output Voltage VOUT Connect to external components ×0.975 VOUT ×1.025 V ① Output Voltage Temperature Characteristics △VOUT △VOUT・△topr Connect to external components - 40℃≦Topr≦85℃ - ±100 - ppm/ ℃ ① Maximum Input Voltage VIN 10 - - V ① - 0.8 0.9 V ① - - 0.8 V ② 0.7 - - V ① IOUT=0mA (*1) Applied (output voltage×0.95) to VOUT Applied (output voltage+0.5V) to VOUT Same as IDD1, VLx=0.4V (*3) Same as IDD2, VLx=7V Same as IDD1, measure Lx waveform IOUT=1mA, measure Lx ON time (XC9111 only) Connect to external components E7-1(*) E1-1(*) E2-1(*) E3-1(*) E4-1(*) E7-2(*) E1-2(*) E2-2(*) E3-2(*) E4-2(*) 1 E7-3(*) μA μA μA Ω μA % ① ② ② ② ③ ② 48 56 64 % ① Operation Start Voltage VST1 Oscillation Start Voltage VST2 IOUT=1mA, connect to external components Applied 0.8V to VOUT, Vpull=1.0V IOUT=1mA, connect to external components Operation Hold Voltage VHLD Input Current Supply Current 1 (*2) Supply Current 2 Lx Switch ON Resistance Lx Leak Current Duty Ratio IIN IDD1 IDD2 RSWON ILxL DTY Duty Ratio 2 DTY2 Maximum Oscillation Frequency MAXFOSC Same as IDD1 85 100 115 kHz ② MAXFOSC2 Same as IDD1 (XC9111 only) 153 180 207 kHz ② ISTB VCEH VCEL ICEH ICEL Same as IDD1, VCE=0V Same as IDD1, determine Lx oscillation Same as IDD1, determine Lx shut-down Same as IDD1, VCE=VOUT×0.95 Same as IDD1, VCE=0V Same as IDD1, when max. oscillation frequency is more than double. 0.75 - - 0.50 0.20 0.25 -0.25 μA V V μA μA ④ ④ ④ ⑤ ⑤ 0.7 - 1.1 V ② Connect to external components - E8(*) - % ① Maximum Oscillation Frequency 2 Stand-by Current CE “High” Voltage CE “Low” Voltage CE “High” Current CE “Low” Current Lx Limit Voltage (*4) VLxLMT Efficiency (*5) EFFI Test condition : Unless otherwise specified, connect CE to VOUT, VIN=VOUT×0.6, IOUT=<C1(*)>, Vpull=5.0V NOTE: *1: TOREX SD, XB01SB04A2BR is used, reverse current IR < 1μA (when reverse voltage VR = 10V is applied), in case of using selected parts. *2: Supply Current 1 is the value when the IC is constantly switching. In actual operation, the oscillator periodically switches, resulting in lower power consumption. Please refer to Input Current (IIN) under no load condition for the actual current, which is supplied from the input power supply (VIN). *3: Lx switch ON resistance can be calculated by (VLx x Rp) / (Vpull - VLx). * Change Vpull so that VLx will become 0.4V. *4: The Lx. limit voltage function becomes stable when VOUT of the XC9110/9111 series is over 2.0V. *5: EFFI={[output voltage]×(output current)} / [(input voltage)×(input current)]×100 *6: Please be aware of the absolute maximum ratings of the external components. (*): Please refer to the charts. 8/35 XC9110/XC9111 Series ■ELECTRICAL CHARACTERISTICS (Continued) Ta = 25℃ XC9110Dxx1MR, XC9111Dxx1MR PARAMETER SYMBOL CONDITIONS MIN. Output Voltage VOUT Connect to external components ×0.975 Output Voltage Temperature Characteristics △VOUT △VOUT・△topr Connect to external components - 40℃≦Topr≦85℃ - Maximum Input Voltage VIN Operation Start Voltage VST1 Oscillation Start Voltage VST2 IOUT=1mA, connect to external components Applied 0.8V to VOUT TYP. MAX. UNIT CIRCUIT ×1.025 V ⑥ ±100 - ppm/ ℃ ⑥ 10 - - V - - 0.8 0.9 V ⑥ - - 0.8 V ⑦ VOUT Operation Hold Voltage VHLD Supply Current 1 (*1) Supply Current 2 EXT H ON Resistance EXT L ON Resistance Duty Ratio IDD1 IDD2 REXTH REXTL DTY Duty Ratio 2 DTY2 IOUT=1mA, connect to external components Applied (output voltage×0.95) to VOUT Applied (output voltage+0.5V) to VOUT Same as IDD1, VEXT=VOUT-0.4(*2) Same as IDD1, VEXT=0.4V(*3) Same as IDD1, measure Lx waveform IOUT=1mA, measure Lx ON time (XC9111 only) Connect to external components Maximum Oscillation Maximum Oscillation Standby Current CE “High” Voltage CE “Low” Voltage CE “High” Current CE “Low” Current MAXFOSC MAXFOSC ISTB VCEH VCEL ICEH ICEL Same as IDD1 Same as IDD1 (XC9111 only) Same as IDD1, VCE=0V Same as IDD1, determine Lx oscillation Same as IDD1, determine Lx shut-down Same as IDD1, VCE=VOUT×0.95 Same as IDD1, VCE=0V 85 153 0.75 - 100 180 - 115 207 0.50 0.20 0.25 -0.25 kHz kHz μA V V μA μA ⑦ ⑦ ⑤ ⑧ ⑧ ⑤ ⑤ Efficiency (*4) EFFI Connect to external components - E8(*) - % ⑥ 0.7 - - V ⑥ E7-1(*) E2-1(*) E3-1(*) E5-1(*) E6-1(*) E7-2(*) E2-2(*) E3-2(*) E5-2(*) E6-2(*) E7-3(*) μA μA Ω Ω % ⑦ ⑦ ② ② ⑦ 48 56 64 % ⑥ Test condition : Unless otherwise specified, connect CE to VOUT, VIN=VOUT×0.6, IOUT=<C1(*)> NOTE: *1: "Supply Current 1" is the value when the IC is constantly switching. In actual operation, the oscillator periodically switches, resulting in lower power consumption. *2: EXT H ON resistance can be calculated by (0.4 x Rp) / (VEXT - Vpull). *3: EXT L ON resistance can be calculated by (VEXT x Rp) / (Vpull - VEXT). * Change Vpull so that VEXT will become VOUT-0.4V. * Change Vpull so that VEXT will become 0.4V. *4: EFFI={[output voltage]×(output current)} / [(input voltage)×(input current)]×100 *5: Please be aware of the absolute maximum ratings of the external components. (*): Please refer to the charts. 9/35 XC9110/XC9111 Series ■ELECTRICAL CHARACTERISTICS (Continued) XC9110Exx1MR, XC9111Exx1MR Ta = 25℃ PARAMETER SYMBOL CONDITIONS MIN. Output Voltage VOUT Connect to external components ×0.975 Output Voltage Temperature Characteristics Maximum Input Voltage △VOUT △VOUT・△topr Connect to external components - 40℃≦Topr≦85℃ - ±100 - 10 - - ppm/ ℃ V - 0.8 0.9 V ① - - 0.8 V ② 0.7 - - V ① E7-1(*) E1-1(*) E2-1(*) E3-1(*) E4-1(*) E7-2(*) E1-2(*) E2-2(*) E3-2(*) E4-2(*) 1 E7-3(*) μA μA μA Ω μA % ① ② ② ② ③ ② 48 56 64 % ① 85 153 100 180 115 207 kHz kHz ② ② 0.7 - 1.1 V ② - E8(*) - % ① VIN Operation Start Voltage VST1 Oscillation Start Voltage VST2 Operation Hold Voltage VHLD Input Current Supply Current 1 (*2) Supply Current 2 Lx Switch ON Resistance Lx Leak Current Duty Ratio IIN IDD1 IDD2 RSWON ILxL DTY Duty Ratio 2 Maximum Oscillation Maximum Oscillation Lx Limit Voltage (*4) IOUT=1mA, connect to external components Applied 0.8V to VOUT, Vpull=1.0V IOUT=1mA, connect to external components IOUT=0mA (*1) Applied (output voltage×0.95) to VOUT Applied (output voltage+0.5V) to VOUT Same as IDD1, VLx=0.4V (*3) Same as IDD2, VLx=7V Same as IDD1, measure Lx waveform IOUT=1mA, measure Lx ON time (XC9111 DTY2 only) Connect to external components MAXFOSC Same as IDD1 MAXFOSC2 Same as IDD1 (XC9111 only) Same as IDD1, VLx when max. oscillation VLxLMT frequency is more than double. Efficiency (*5) EFFI Connect to external components TYP. VOUT MAX. UNIT CIRCUIT ×1.025 V ① ① - Test condition : Unless otherwise specified, connect VDD to VOUT, VIN=VOUT×0.6, IOUT=<C1(*)>, Vpull=5.0V NOTE: *1: TOREX SD, XB01SB04A2BR is used; reverse current IR < 1μA (when reverse voltage VR = 10V is applied), in case of using selected parts. *2: "Supply Current 1" is the value when the IC is constantly switching. in lower power consumption. In actual operation, the oscillator periodically switches, resulting Please refer to Input Current (IIN) under no load condition for the actual current, which is supplied from the input power supply (VIN). *3: Lx switch ON resistance can be calculated by (VLx x Rp) / (Vpull - VLx). * Change Vpull so that VLx will become 0.4V. *4: The Lx limit voltage function becomes stable when VOUT of the XC9110/9111 series is over 2.0V. *5: EFFI={[output voltage]×(output current)} / [(input voltage)×(input current)]×100 *6: When using VDD and VOUT separately, please set the voltage range of VDD from 1.5V to 10V. The IC operates from VDD=0.8V, but output voltage and oscillation frequency will be stable when VDD=1.5V or more. *7: Please be aware of the absolute maximum ratings of the external components. (*): Please refer to the charts. 10/35 XC9110/XC9111 Series ■ELECTRICAL CHARACTERISTICS (Continued) Ta = 25℃ XC9110Fxx1MR, XC9111Fxx1MR PARAMETER SYMBOL CONDITIONS MIN. Output Voltage VOUT Connect to external components ×0.975 Output Voltage Temperature Characteristics △VOUT △VOUT・△ topr VIN Connect to external components - 40℃≦Topr≦85℃ - Maximum Input Voltage TYP. MAX. UNIT CIRCUIT ×1.025 V ⑥ ±100 - ppm/ ℃ ⑥ VOUT 10 - - V - IOUT=1mA, connect to external components - 0.8 0.9 V ⑥ Operation Start Voltage VST1 Oscillation Start Voltage VST2 Applied 0.8V to VOUT - - 0.8 V ⑦ Operation Hold Voltage VHLD IOUT=1mA, connect to external components 0.7 - - V ⑥ Supply Current 1 (*1) Supply Current 2 EXT H ON Resistance EXT L ON Resistance IDD1 IDD2 REXTH REXTL Applied (output voltage×0.95) to VOUT Applied (output voltage+0.5V) to VOUT Same as IDD1, VEXT=VOUT=-0.4V (*2) Same as IDD1, VEXT=0.4V (*3) - E2-1(*) E3-1(*) E5-1(*) E6-1(*) E2-2(*) E3-2(*) E5-2(*) E6-2(*) μA μA Ω Ω ⑦ ⑦ ② ② Duty Ratio DTY E7-1(*) E7-2(*) E7-3(*) % ⑦ Duty Ratio 2 DTY2 Same as IDD1, measure Lx waveform IOUT=1mA, measure Lx ON time (XC9111 only) Connect to external 48 56 64 % ⑥ Maximum Oscillation Maximum Oscillation MAXFOSC MAXFOSC Same as IDD1 Same as IDD1 (XC9111 only) 85 153 100 180 115 207 kHz kHz ⑦ ⑦ Efficiency (*4) EFFI Connect to external components - E9(*) - % ⑥ Test condition : Unless otherwise specified, connect VDD to VOUT, VIN=VOUT×0.6, IOUT=<C1(*)> NOTE: *1: "Supply Current 1" is the value when the IC is constantly switching. In actual operation, the oscillator periodically switches, resulting in lower power consumption. *2: EXT H ON resistance can be calculated by (0.4 x Rp) / (VEXT - Vpull). *3: EXT L ON resistance can be calculated by (VEXT x Rp) / (Vpull - VEXT). * Change Vpull so that VEXT will become VOUT-0.4V. * Change Vpull so that VEXT will become 0.4V. *4: EFFI={[output voltage]×(output current)} / [(input voltage)×(input current)]×100 *5: When using VDD and VOUT separately, please set the voltage range of VDD from 1.5V to 10V. The IC operates from VDD=0.8V, but output voltage and oscillation frequency will be stable when VDD=1.5V or more. *6: Please be aware of the absolute maximum ratings of the external components. (*): Please refer to the charts. 11/35 XC9110/XC9111 Series ■ELECTRICAL CHARACTERSTICS (Continued) ● IDD2, REXTH, REXTL, DTY Chart SYMBOL E2-1 E2-2 PARAMETER Supply Current 1 UNIT SETTING VOLTAGE 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 (μA) IDD1 TYP. MAX. 7.7 15.1 8.0 15.6 8.3 16.2 8.6 16.8 8.9 17.5 9.3 18.2 9.7 18.9 10.1 19.7 10.5 20.6 11.0 21.5 11.5 22.5 12.0 23.5 12.5 24.5 13.1 25.6 13.7 26.8 14.3 28.0 15.0 29.3 15.7 30.6 16.4 31.9 17.1 33.3 17.8 34.8 18.6 36.3 19.4 37.9 20.3 39.5 21.1 41.1 22.0 42.8 22.9 44.5 23.8 46.3 24.8 48.2 25.7 50.0 26.7 52.0 27.7 53.9 28.8 56.0 29.8 58.0 30.9 60.1 31.7 63.4 32.3 64.7 32.9 65.9 33.5 67.1 34.1 68.3 34.7 69.5 35.3 70.7 36.0 72.0 36.5 73.1 37.1 74.3 37.7 75.5 38.4 76.8 38.9 77.9 39.5 79.1 40.2 80.4 40.8 81.6 41.3 82.7 42.0 84.0 42.6 85.2 43.2 86.4 43.7 87.5 12/35 E1-1 E1-2 Input Current (No Load) (μA) IIN TYP. MAX. 4.3 8.6 E3-1 E3-2 Supply Current 2 (μA) IDD2 TYP. MAX. 1.9 3.5 3.9 4.4 8.8 E4-1 E4-2 Lx Switch ON Resistance (Ω) RSWON TYP. MAX. E5-1 E5-2 EXT H ON Resistance (Ω) REXTH TYP. MAX. E6-1 E6-2 EXT L ON Resistance (Ω) REXTL TYP. MAX. 4.2 6.3 160 240 67 101 3.5 5.3 108 162 52 78 3.2 4.8 91 137 45 68 2.8 4.2 70 105 38 57 2.5 3.8 59 89 33 50 2.1 3.2 40 60 24 36 4.0 2.0 4.5 9.1 4.1 4.6 9.3 4.2 2.1 4.7 9.5 4.3 4.8 9.7 4.4 2.2 5.0 10.0 4.5 5.1 10.2 4.6 2.3 5.2 10.4 4.7 5.3 10.6 4.8 2.4 5.4 10.8 4.9 5.5 11.1 5.0 2.5 5.6 11.3 5.1 5.7 11.5 5.2 2.6 5.8 11.7 6.0 12.0 5.3 2.7 5.4 XC9110/XC9111 Series ■ELECTRICAL CHARACTERSTICS (Continued) ● IOUT, DTY, EFFI Chart SYMBOL PARAMETER UNIT SETTING VOLTAGE 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7.0 C1 OUTPUT CURRENT (mA) IOUT 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 30.0 31.0 32.0 33.0 34.0 35.0 36.0 37.0 38.0 39.0 40.0 41.0 42.0 43.0 44.0 45.0 46.0 47.0 48.0 49.0 50.0 51.0 52.0 53.0 54.0 55.0 56.0 57.0 58.0 59.0 60.0 61.0 62.0 63.0 64.0 65.0 66.0 67.0 68.0 69.0 70.0 E7-1 E7-2 E7-3 DUTY RATIO MIN. 70 68 (%) DTY TYP. 75 73 E8 XC9110 MAX. E9 EFFICIENCY XC9111 XC9110 (%) EFFI TYP. XC9111 60 75 60 75 65 79 61 75 77 82 77 82 80 86 80 83 82 88 82 85 80 78 13/35 XC9110/XC9111 Series ■TYPICAL APPLICATION CIRCUITS ●A type circuit L: 100μH SD: XB01SB04A2BR CL: 16V, 47μF CIN: 16V, 47μF ●B type circuit (Coil, CR54, SUMIDA) (Schottky type, TOREX) (Tantalum) (Tantalum) ●C type circuit L: SD: CL: CIN: 100μH XB01SB04A2BR 16V, 47μF 16V, 47μF ●D type circuit (Coil, CR54,SUMIDA) (Schottky type, TOREX) (Tantalum) (Tantalum) ●E type circuit L: SD: CL: CIN: 14/35 100μH XB01SB04A2BR 16V, 47μF 16V, 47μF L: 47μH (Coil, CR54, SUMIDA) SD: XB01SB04A2BR (Schottky type, TOREX) CL: 16V, 47μF (Tantalum) CIN: 16V, 47μF (Tantalum) RB: 500Ω CB: 2200pF Tr: 2SD1628 L: 47μH SD: XB01SB04A2BR CL: 16V, 47μF CIN: 16V, 47μF RB: 500Ω CB: 2200pF Tr: 2SD1628 (Coil, CR54,SUMIDA) (Schottky type, TOREX) (Tantalum) (Tantalum) (SANYO) ●F type circuit (Coil, CR54,SUMIDA) (Schottky type, TOREX) (Tantalum) (Tantalum) L: 47μH SD: XB01SB04A2BR CL: 16V, 47μF CIN: 16V, 47μF RB: 1kΩ CB: 3300pF Tr: 2SD1628 (Coil, CR54,SUMIDA) (Schottky type, TOREX) (Tantalum) (Tantalum) (SANYO) XC9110/XC9111 Series ■OPERATIONAL EXPLANATION The XC9110/9111 series are PFM controlled step-up DC/DC converter (A, C and E types) / controller ICs (B, D and F types), which contain voltage reference source, PFM comparator, duty selector, PFM controlled OSC, VLx Limiter, driver transistor and so on. With the XC9110 series, maximum duty ratio is set to 75% (maximum oscillation frequency=MAXFOSC: 100kHz) making it suitable for use with large current operations. The XC9111 series automatically switches duty ratio between 56% (MAXFOSC: 180kHz) and 75% (MAXFOSC: 100kHz) when it senses changes in load and can support both large and small currents. <Reference Voltage Source (Vref) > The reference voltage source provides the reference voltage to ensure stable output voltage of the DC/DC converter. < PFM Comparator > The PFM comparator compares the feedback voltage divided by the internal split resistors with the internal reference voltage. When the feedback voltage is higher than the reference voltage, PFM controlled OSC will be stopped. When the feedback voltage is lower than the reference voltage, the PFM controlled OSC will be operated so that the output voltage will be stable by sending a signal to the buffer drive circuit and controlling the internal or external driver transistor. < Duty Selector > With the XC9111 series, the duty selector automatically switches duty ratio between 56% and 75% when it senses changes in load and can support both large and small currents. < PFM Controlled Oscillator > The PFM controlled OSC determines maximum oscillation frequency. 100kHz at 75% duty and 180kHz at 56%. The circuit generates the oscillation frequency of < VLx Limiter> The VLx circuit of the XC9110/9111 A, C and D types detects in-rush current and overcurrent, which flows from the VOUT pin to the Lx pin during short-circuit. In overcurrent, the driver transistor will be OFF. When the overcurrent state is eliminated, the IC resumes its normal operation. <Chip Enable Function> The chip enable function of the XC9110/9111 C and D types enables the IC to be in shut down mode when a low level signal is input to the CE pin. During the shut down mode, the current consumption will be reduced to 0.5μA (MAX.). <Separated VDD/VOUT> With the separated VDD pin, the XC9110/9111 E and F types can be operated in both low and high voltage. 15/35 XC9110/XC9111 Series ■EXTERNAL COMPONENTS Tr.: *Using a MOSFET XP151A13A0MR (N-ch Power MOSFET, TOREX) Note : VGS breakdown voltage of this Transistor is 8V so please be careful with the power supply voltage. If the power supply voltage is over 6V, Please use the XP151A12A2MR with a VGS breakdown voltage of 12V. * Using a NPN Transistor 2SD1628 (SANYO) RB: 500Ω (Adjust in accordance with load and Tr’s hFE.) CB: 2200pF (Ceramic) CB ≦1 / ( 2TT x RB x FOSC x 0.7 ) ●RB value example (when using NPN Transistor) VOUT (V) IOUT (mA) VIN (V) RB (Ω) VOUT (V) IOUT (mA) VIN (V) RB (Ω) 1.8 1.8 1.8 1.8 1.8 1.8 10 10 30 30 50 50 1.2 1.5 1.2 1.5 1.2 1.5 4.5 6.0 2.0 2.0 1.2 1.5 3.3 3.3 3.3 3.3 3.3 3.3 5 5 10 10 30 30 1.2 1.5 1.2 1.5 1.2 1.5 6.5 6.5 5.0 4.5 3.5 3.5 * Tr.: 2SD1628 SD: XP01SB04A2BR (TOREX) MA2Q735 (MATSUSHITA) (Tantalum type, KYOCERA TAJ) CL: 16V, 47μF CIN: 16V, 47μF (Tantalum type, KYOCERA TAJ) 16V, 220μF (Electrolytic Capacitor) L: <XC9110/9111A, C and E series (Transistor built-in)> 100μH (CR54,SUMIDA) 100μH (CDRH6D28,SUMIDA) <XC9110/9111B, D and F series(Transistor external)> 22μH, 47μH (CR54, SUMIDA) ■NOTES ON USE 1. Please do not exceed the value of stated absolute maximum ratings. 2. The DC/DC converter / controller IC's performance is greatly influenced by not only the ICs' characteristics, but also by those of the external components. Care must be taken when selecting the external components. 3. The Lx limit voltage function becomes stable when VOUT of the XC9110/9111C series is over 2.0V and the VDD of the XC9110/9111E series is over 2.0V. 4. Make sure that the PCB GND traces are as thick as possible, as variations in ground potential caused by high ground currents at the time of switching may result in instability of the IC. 5. Please mount each external component as close to the IC as possible and use thick, short connecting traces to reduce the circuit impedance. 16/35 XC9110/XC9111 Series ■TEST CIRCUITS Circuit ① Circuit ⑤ Circuit ② Circuit ⑥ Circuit ③ Circuit ⑦ Circuit ④ Circuit ⑧ <External Components> Circuit ① CIN: 47μF, 16V L: CR54, 100μH SD: XB01SB04A2BR CL: 47μF, 16V Circuit② Rp: 300Ω Rp: 10Ω Rp: 200Ω Cp: 100μF (Tantalum) (SUMIDA) (Schottky, TOREX) (Tantalum) (For Lx ON Resistance and measuring Lx Limit Current) (For measuring EXT ON Resistance) (OS-CON, SANYO) Circuit ④ Cp: 100μF (OS-CON, SANYO) Circuit ⑥ (Tantalum) CIN: 47μF, 16V L: CR54, 100μH (SUMIDA) Tr: 2SD1628 (SANYO) CB: 2200pF RB: 500Ω SD: XB01SB04A2BR (Schottky, TOREX) (Tantalum) CL: 47μF, 16V 17/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (1) Output Voltage vs. Output Current 18/35 *Topr = 25℃ XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (1) Output Voltage vs. Output Current (Continued) *Topr = 25℃ 19/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (2) Efficiency vs. Output Current 20/35 *Topr = 25℃ XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (2) Efficiency vs. Output Current (Continued) *Topr = 25℃ 21/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (3) Ripple Voltage vs. Output Current 22/35 *Topr = 25℃ XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (3) Ripple Voltage vs. Output Current (Continued) *Topr = 25℃ 23/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) *Topr = 25℃ (4) Supply Current 1 vs. Output Voltage (5) Supply Current 2 vs. Output Voltage (6) Stand-by Current vs. Output Voltage (7) No Load Input Current vs. Output Voltage (8) Lx Limit Voltage vs. Output Voltage (9) Lx Switch-ON Resistance vs. Output Voltage * The reason for the increase in the "no load input current" figure at Ta=85℃ in the performance characteristics is because of an increase in the reverse current of the Schottky diode and not because of abnormalities of the IC itself. 24/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) *Topr = 25℃ (10) EXT H ON Resistance vs. Output Voltage (11) EXT L ON Resistance vs. Output Voltage (12) Maximum Oscillation Frequency 1. vs. Output Voltage (13) Maximum Oscillation Frequency 2 vs. Output Voltage (14) Duty Ratio 1 vs. Output Voltage (15) Duty Ratio 2 vs. Output Voltage 25/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) *Topr = 25℃ (16) Output Voltage vs. Ambient Temperature (17) CE “H”, “L” Voltage vs. Output Voltage (18) Operation Start Voltage vs. Ambient Temperature (19) Oscillation Start Voltage vs. Ambient Temperature (20) Operation Hold Voltage vs. Ambient Temperature 26/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (21) Load Transient Response VIN=2.4V, VDD=VOUT, IOUT=0.1mA *Topr = 25℃ 50mA 27/35 XC9110/XC9111 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) (22) Input Transient Response 28/35 *Topr = 25℃ XC9110/XC9111 Series ■PACKAGING INFORMATION ●SOT-23 ●SOT-89 ●SOT-25 (SOT-23-5) ●USP-6C 29/35 XC9110/XC9111 Series ■PACKAGING INFORMATION (Continued) ●USP-6C Recommended Pattern Layout 30/35 ●USP-6C Recommended Metal Mask Design XC9110/XC9111 Series ■ MARKING RULE ●SOT-23 ①Represents product series MARK FUNCTIONS - 5 6 Built-In Transistor External Transistor PRODUCT SERIES XC9111Axxxxx XC9111Bxxxxx ②Represents integer of output voltage and oscillation frequency OUTPUT VOLTAGE 1.x 2.x 3.x 4.x 5.x 6.x 7.x MARK FOSC=100kHz 1 2 3 4 5 6 7 OUTPUT VOLTAGE MARK FOSC=100KHz x.0 0 x.1 1 x.2 2 x.3 3 x.4 4 x.5 5 x.6 6 x.7 7 x.8 8 x.9 9 ④Represents production lot number 0 to 9, A to Z repeated (G, I, J, O, Q, W excepted) 31/35 XC9110/XC9111 Series ■ MARKING RULE (Continued) ●SOT-25 ①Represents product series MARK SOT-25 (TOP VIEW) FUNCTION V X Y Z 5 6 7 8 CE CE VDD/VOUT VDD/VOUT CE CE VDD/VOUT VDD/VOUT PRODUCT SERIES Tr. Built-in External Tr. Tr. Built-in External Tr. Tr. Built-in External Tr. Tr. Built-in External Tr. XC9110Cxxxxx XC9110Dxxxxx XC9110Exxxxx XC9110Fxxxxx XC9111Cxxxxx XC9111Dxxxxx XC9111Exxxxx XC9111Fxxxxx ②Represents integer of output voltage and oscillation frequency OUTPUT VOLTAGE MARK FOSC=100kHz 1.x 2.x 3.x 4.x 5.x 6.x 7.x 1 2 3 4 5 6 7 ③Represents decimal point of output voltage and oscillation frequency OUTPUT VOLTAGE MARK FOSC=100kHz x.0 x.1 x.2 x.3 x.4 x.5 x.6 x.7 x.8 x.9 0 1 2 3 4 5 6 7 8 9 ④Represents production lot number 0 to 9, A to Z repeated (G, I, J, O, Q, W excepted) 32/35 XC9110/XC9111 Series ■ MARKING RULE (Continued) ●SOT-89 ①Represents product series MARK - 5 6 FUNCTIONS Built-In Transistor External Transistor PRODUCT SERIES XC9111Axxxxx XC9111Bxxxxx ②Represents integer of output voltage and oscillation frequency OUTPUT VOLTAGE 1.x 2.x 3.x 4.x 5.x 6.x 7.x MARK FOSC 100kHz 1 2 3 4 5 6 7 ③Represents decimal point of output voltage and oscillation frequency OUTPUT VOLTAGE x.0 x.1 x.2 x.3 x.4 x.5 x.6 x.7 x.8 x.9 MARK FOSC 100kHz 0 1 2 3 4 5 6 7 8 9 ④Represents production lot number 0 to 9, A to Z repeated (G, I, J, O, Q, W excepted) 33/35 XC9110/XC9111 Series ■ MARKING RULE (Continued) ●USP-6C ①Represents product series MARK PRODUCT SERIES M N XC9110xxx1Dx XC9111xxx1Dx ②Represents series type USP-6C (TOP VIEW) MARK FUNCTION C D E F CE CE VDD/VOUT VDD/VOUT PRODUCT SERIES Tr. Built-in External Tr. Tr. Built-in External Tr. XC911xCxx1Dx XC911xDxx1Dx XC911xExx1Dx XC911xFxx1Dx ③Represents integer of output voltage MARK OUTPUT VOLTAGE 1 2 3 4 5 6 7 1.x 2.x 3.x 4.x 5.x 6.x 7.x ④Represents decimal point of output voltage MARK OUTPUT VOLTAGE 0 1 2 3 4 5 6 7 8 9 x.0 x.1 x.2 x.3 x.4 x.5 x.6 x.7 x.8 x.9 ⑤Represents oscillation frequency MARK OSCILLATION FREQUENCY PRODUCT SERIES 1 x.0 XC911xxxx1Dx ⑥Represents production lot number 0 to 9, A to Z repeated (G, I, J, O, Q, W excepted) * No character inversion used 34/35 XC9110/XC9111 Series 1. The products and product specifications contained herein are subject to change without notice to improve performance characteristics. Consult us, or our representatives before use, to confirm that the information in this catalog is up to date. 2. We assume no responsibility for any infringement of patents, patent rights, or other rights arising from the use of any information and circuitry in this catalog. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this catalog. 4. The products in this catalog are not developed, designed, or approved for use with such equipment whose failure of malfunction can be reasonably expected to directly endanger the life of, or cause significant injury to, the user. (e.g. Atomic energy; aerospace; transport; combustion and associated safety equipment thereof.) 5. Please use the products listed in this catalog within the specified ranges. Should you wish to use the products under conditions exceeding the specifications, please consult us or our representatives. 6. We assume no responsibility for damage or loss due to abnormal use. 7. All rights reserved. No part of this catalog may be copied or reproduced without the prior permission of Torex Semiconductor Ltd. 35/35