XC9801/XC9802 Series ETR0802_003a Regulated Voltage Step-Up Charge Pump ICs ■ GENERAL DESCRIPTION The XC9801 series are fixed regulated voltage step-up charge pump ICs which provide stable, highly efficient, positive voltages with the only external components required being 2 capacitors. Since regulating is done via the control of the charge pump's gate voltage waveform, ripple is minimal. Output voltage is selectable in 100mV steps within a 2.5V ~ 6.0V range. Control of the XC9802 switches to PFM (pulse skip) during light loads without affecting output impedance or ripple so that the IC is protected against drops in efficiency. Connecting the SENSE pin to the GND pin allows the IC to be used as a voltage doubler. As well as the ultra small MSOP-8A and USP-8 packages, the small consumption current and high efficiencies of the series make the XC9801 suitable for use with all types of battery operated applications. ■APPLICATIONS ■FEATURES ●Palm top computers, PDAs Input Voltage Range : 1.8V ~ 5.5V Output Voltage Range : 2.5V ~ 6.0V Small Input Current : 80μA (no load:XC9802) Output Current : 80mA (3.6V→5.0V step-up) Oscillation Frequency : 300kHz Stand-by Current (CE ’L’) : 2.0μA (MAX.) ●On board local power supplies ●Various battery powered devices PFM Operation During Light Loads (XC9802) CE (Chip Enable) Function Can be used as a step-up doubler (sense = 0V) Packages Environmentally Friendly ■TYPICAL APPLICATION CIRCUIT Regulation Output : MSOP-8A, USP-8 : EU RoHS Compliant, Pb Free ■TYPICAL PERFORMANCE CHARACTERISTICS 1/12 XC9801/XC9802 Series ■PIN CONFIGURATION ■PIN ASSIGNMENT PIN NUMBER 1 8 2 7 USP-8 MSOP-8A 3 6 1 4 5 PIN NAME FUNCTION 1 SENSE Output Voltage Monitor 2 2 CE Chip Enable (High Active) 3 3 VIN Input (Power Supply) 4 4 GND Ground 5 5 PGND Power Ground 1 SENSE 6 6 C1− External Capacitor - Pin C1- 7 6 C1+ 2 CE 7 7 C1＋ External Capacitor + Pin C1+ C1- 76 3 VIN 8 8 VOUT Output MSOP-8A (TOP VIEW) PGND 5 VOUT 8 VOUT 5 8 PGND 4 GND USP-8 (BOTTOM VIEW) ■PRODUCT CLASSIFICATION ●Selection Guide SERIES PULSE SKIP MODE XC9801 Not Available XC9802 Available ●Ordering Information XC9801/XC9802 ①②③④⑤⑥-⑦(*1) DESIGNATOR ITEM SYMBOL ① True Logic Level at CE Pin B Positive 50 Standard voltage VOUT=5.0V→②=5, ③=0 ②③ Output Voltage 25 ~ 60 ④ ⑤⑥-⑦ Oscillation Frequency 3 DESCRIPTION Semi-custom voltage e.g. VOUT=2.5V→②=2, ③=5 300kHz KR MSOP-8A (1,000/Reel) KR-G MSOP-8A (1,000/Reel) Packages (Order Unit) DR USP-8 (3,000/Reel) DR-G USP-8 (3,000/Reel) Regulated output voltage function cannot be used by the following input voltage condition: VIN < (VOUT/2), or VIN ≧ VOUT (*1) The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully RoHS compliant. 2/12 XC9801/XC9802 Series ■BLOCK DIAGRAM Controller (1) Basic Operations Using the XC9801/02’s clock generated by the internal oscillator, a step-up charge pump operation can be brought about as a result of the alternate switching between operating conditions where P1 & N4 are ON with P2 & P3 OFF (or) P1 & N4 are OFF with P2 & P3 ON. By connecting the SENSE pin to VOUT, output voltage can be feedback and the difference between the feedback voltage and the reference voltage (Vref) are compared by the internal operational amplifier. Output voltage can be stabilized (* 2) by controlling P3’s gate voltage waveform via the signal generated by the internal amplifier. Please note that this stabilizing function will not operate with VIN < (VOUT/2) or VIN ≧ VOUT. By connecting SENSE to ground, the output stability function, as described above, can be halted and the IC can be used as a step-up doubler. * 2 : As a result of P3 gradually reaching an ON state with each clock (signal), rush current is controlled, the ripple decreases and with the combination of the independent phase compensation circuit, output voltage is stabilized (2) Stand-by Function When the voltage at CE (chip enable) is ‘low’ (0V), P1, P2 & P3 will be OFF with N4 & N5 ON. The external capacitor C1 will discharge and impedance at VOUT will be high. (3) PFM (Pulse Skip) Operations Whilst maintaining output voltage, the XC9802 provides the added security of protection against drops in efficiency during light loads as a result of the pulse, generated by the internal oscillator, being skipped and the operating frequency being changed. ■ABSOLUTE MAXIMUM RATINGS PARAMETER VIN pin Voltage VOUT pin Voltage C1 + pin Voltage C1 - pin Voltage CE pin Voltage VOUT Pin Output Current MSOP-8A Power Dissipation USP-8 Operating Temperature Range Storage Temperature Range SYMBOL VIN VOUT C1+ C1VCE IOUT Pd Topr Tstg CONDITIONS −0.3∼6.0 −0.3∼12.0 −0.3∼VOUT＋0.3 −0.3∼VOUT＋0.3 −0.3∼VIN＋0.3 200 150 120 −40∼＋85 −40∼＋125 Ta = 25℃, GND = 0V UNITS V V V V V mA mW ℃ ℃ 3/12 XC9801/XC9802 Series ■ELECTRICAL CHARACTERISTICS XC9801B503KR VOUT=5.0V PARAMETER Ta=25℃ SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Output Voltage VOUT Regulation Output IOUT=1mA 4.875 5.000 5.125 V Load Regulation △VOUT Regulation Output 1mA≦IOUT≦80mA -100 - 100 mV Operating Voltage Range VIN 1.8 - 5.5 V Supply Current IDD 1 3 6 mA Stand-by Current ISTB - - 2.0 μA Oscillation Frequency FOSC 255 300 345 kHz Output Impedance ROUT Doubler Output - 20 40 Ω IIN Doubler Output - 5 - mA IIN2 Regulation Output - 1.5 - mA 95 99 - % 73 78 - % IOUT=1mA - 40 - % IOUT=80mA 64 69 - % Input Current Voltage Converting Efficiency Power Converting Efficiency Doubler Output, VOUT>VIN×2×0.95 VIN=3.6V, External Components=CIN only, SENSE=0V, VOUT=VIN CE=0V External Component=CIN only, SENSE=0V, VOUT open VEFFI Doubler Output EFFI Doubler Output EFFI2 EFFI3 Regulation Output IOUT=10mA IOUT=10mA CE / ’H’ Level Voltage VCEH 1.5 - - V CE / ‘L’ Level Voltage VCEL - - 0.25 V CE / Input Current ICE -2.0 - 2.0 μA VIN=5.5V, SENSE=0V, External Components=CIN only Test Conditions: Unless otherwise stated, Typical Application Circuit, VIN=3.6V, GND=0V, CE=VIN, No Load, SENSE=VOUT (Regulation Output) XC9802B503KR VOUT=5.0V Ta=25℃ PARAMETER SYMBOL MIN. TYP. MAX. UNITS Output Voltage VOUT Regulation Output CONDITIONS IOUT=1mA 4.875 5.000 5.125 V Regulation Output 1mA≦IOUT≦80mA -100 - 100 mV 1.8 - 5.5 V 1 3 6 mA - - 2.0 μA 255 300 345 kHz - 10 - kHz - 20 40 Ω - 5 - mA - 0.08 - mA 98 99 - % Load Regulation △VOUT Operating Voltage Range VIN Supply Current IDD Stand-by Current ISTB Oscillation Frequency FOSC Switching Pulse Frequency FOSC2 Output Impedance ROUT Doubler Output IIN Doubler Output IIN2 Regulation Output Input Current Doubler Output, VOUT >VIN×2×0.95 VIN=3.6V, External Components=CIN only, SENSE=0V, VOUT=VIN CE=0V External Component = CIN only, SENSE=0V, VOUT open Regulation Output IOUT=1mA Voltage Converting Efficiency VEFFI Doubler Output EFFI Doubler Output Power Converting Efficiency EFFI2 EFFI3 CE /‘H’Level Voltage VCEH CE /‘L’Level Voltage VCEL CE / Input Current ICE Regulation Output IOUT=10mA 73 78 - % IOUT=1mA - 59 - % IOUT=80mA VIN=5.5V, SENSE=0V, External Components=CIN only Test Conditions: Unless otherwise stated, Typical Application Circuit, VIN=3.6V, GND=0V, CE=VIN, No Load, SENSE=VOUT (Regulation Output) 4/12 IOUT=10mA 64 69 - % 1.5 - - V - - 0.25 V -2.0 - 2.0 μA XC9801/XC9802 Series ■ELECTRICAL CHARACTERISTICS (Continued) XC9801B333KR VOUT=3.3V Ta=25℃ PARAMETER Output Voltage SYMBOL VOUT CONDITIONS Regulation Output - 66 mV - 5.5 V 1 3 6 mA - - 2.0 μA 255 300 345 kHz - 20 40 Ω - 5 - mA - 1.1 - mA 95 99 - % IDD Stand-by Current ISTB Oscillation Frequency FOSC Output Impedance ROUT Doubler Output IIN Doubler Output IIN2 Regulation Output Regulation Output CE=0V External component=CIN only, SENSE=0V, VOUT open Voltage Converting Efficiency VEFFI Doubler Output EFFI Doubler Output Power Converting Efficiency EFFI2 CE / ‘L’ Level Voltage VCEL CE / Input Current ICE UNITS V 1.8 Supply Current VCEH MAX. 3.383 -66 VIN CE / ‘H’ Level Voltage TYP. 3.300 1mA≦IOUT≦2mA △VOUT EFFI3 MIN. 3.218 Doubler Output, VOUT>VIN×2×0.95 VIN=3.6V, External components=CIN only, SENSE=0V, VOUT=VIN Load Regulation Operating Voltage Range Input Current IOUT=1mA IOUT=10mA Regulation Output IOUT=10mA 73 78 - % IOUT=1mA - 40 - % IOUT=32mA VIN=5.5V, SENSE=0V, External Components=CIN only 64 69 - % 1.5 - - V - - 0.25 V -2.0 - 2.0 μA MAX. 3.383 Ta=25℃ UNITS V Test Conditions: Unless otherwise stated, Typical Application Circuit, VIN=2.376V, GND=0V, CE=VIN, No Load, SENSE=VOUT (Regulation Output) XC9802B333KR VOUT=3.3V PARAMETER Output Voltage SYMBOL VOUT CONDITIONS Regulation Output Load Regulation △VOUT Operating Voltage Range VIN Supply Current IDD Stand-by Current ISTB Oscillation Frequency FOSC Switching Pulse Frequency FOSC2 Output Impedance ROUT Doubler Output IIN Doubler Output IIN2 Regulation Output Input Current Regulation Output EFFI Doubler Output Power Converting Efficiency EFFI2 CE / ‘L’ Level Voltage VCEL CE / Input Current ICE −66 - 66 mV 1.8 - 5.5 V 1 3 6 mA - - 2.0 μA 255 300 345 kHz IOUT=1mA - 10 IOUT=10mA - 20 40 Ω - 5 - mA - 0.08 - mA 98 99 - % Regulation Output Doubler Output VCEH 1mA≦IOUT≦32mA CE=0V External Component = CIN only, SENSE=0V, VOUT open VEFFI CE / ‘H’ Level Voltage TYP. 3.300 Doubler Output, VOUT >VIN×2×0.95 VIN=3.6V, External Components=CIN only, SENSE=0V, VOUT=VIN Voltage Converting Efficiency EFFI3 IOUT=1mA MIN. 3.218 Regulation Output kHz IOUT=10mA 73 78 - % IOUT=1mA - 63 - % IOUT=32mA VIN=5.5V, SENSE=0V, External Components=CIN only 64 69 - % 1.5 - - V - - 0.25 V -2.0 - 2.0 μA Test Conditions: Unless otherwise stated, Typical Application Circuit, VIN=2.376V, GND=0V, CE=VIN, No Load, SENSE=VOUT (Regulation Output) 5/12 XC9801/XC9802 Series ■TYPICAL APPLICATION CIRCUITS ① Regulation Output ② Doubler Output External Components: CIN=1μF (Ceramic Capacitor: TAIYO YUDEN) C1=0.47μF (Ceramic Capacitor: TAIYO YUDEN) C2=4.7μF (Ceramic Capacitor: TAIYO YUDEN) Note: The XC9801 series are step-up charge pump voltage doublers which provide regulated output voltage. The application circuit of the doubler output (②) halts the regulated output function and operates as a normal voltage doubler. The output voltage is stable when connected as in (①) above, except when VIN < (VOUT / 2) and VIN ≧ VOUT. 6/12 XC9801/XC9802 Series ■TYPICAL PERFORMANCE CHARACTERISTICS ●XC9801B333KR (300kHz, 3.3V) (1) Output Voltage vs. Output Current (2) Efficiency vs. Output Current (3) Ripple Voltage vs. Output Current 7/12 XC9801/XC9802 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) ●XC9801B503KR (300kHz, 5.0V) (1) Output Voltage vs. Output Current (2) Efficiency vs. Output Current (3) Ripple Voltage vs. Output Current 8/12 XC9801/XC9802 Series ■TYPICAL PERFORMANCE CHARACTERISTICS (Continued) ●XC9801B503KR (300kHz, SENSE=0V, Doubler) (1) Output Voltage vs. Output Current (2) Efficiency vs. Output Current (3) Ripple Voltage vs. Output Current 9/12 XC9801/XC9802 Series ■PACKAGING INFORMATION ●MSOP-8A ●USP-8 ●USP-8 Recommended Pattern Layout ●USP-8 Recommended Metal Mask Design 10/12 XC9801/XC9802 Series ■MARKING RULE ●MSOP-8A ① represents product series MARK PRODUCT SERIES 2 3 XC9801Bxx3Kx XC9802Bxx3Kx ② represents true logic level at the CE pin MARK PRODUCT SERIES B XC9801/XC9802Bxx3Kx ③④ represents output voltage MARK ③ ④ 3 5 3 0 VOLTAGE (V) PRODUCT SERIES 3.3 5.0 XC9801/XC9802B333Kx XC9801/XC9802B503Kx ⑤ represents oscillation frequency MARK OSCILLATION FREQUENCY (kHz) PRODUCT SERIES 3 300 XC9801/XC9802Bxx3Kx ⑥ represents production lot number 0 to 9, A to Z repeated (G, I, J, O, Q, W excluded) Note: No character inversion used. 11/12 XC9801/XC9802 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 datasheet 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 datasheet. 3. Please ensure suitable shipping controls (including fail-safe designs and aging protection) are in force for equipment employing products listed in this datasheet. 4. The products in this datasheet 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 datasheet 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 datasheet may be copied or reproduced without the prior permission of TOREX SEMICONDUCTOR LTD. 12/12