UNISONIC TECHNOLOGIES CO., LTD L5200 CMOS IC LOW NOISE, REGULATED CHARGE PUMP DC/DC CONVERTERS DESCRIPTION The UTC L5200-xx series are low noise, constant frequency charge pump DC/DC converters and designed to increase efficiency in white LED application. The operating voltage range is 2.7V ~ VOUT input with up to 100mA of output current. Low external parts counts (one flying capacitor and two small bypass capacitors at VIN and VOUT) make the UTC L5200-xx series ideally suited for small, battery-powered applications. A charge-pump architecture maintains constant switching frequency to zero load and reduces both output and input ripple. The UTC L5200-xx series have thermal shutdown capability to escape the device damaged from a continuous short-circuit. With built-in soft-start circuitry to prevents excessive current flow at VIN during start-up. High switching frequency enables the use of small ceramic capacitors. A low-current shutdown feature disconnects the load from VIN and reduces quiescent current to <1μA. The L5200-ADJ is available in MSOP-8 package and L5200-fixed in SOT-26 and TSOT-26 package. FEATURES * Low Noise Constant Frequency Operation * Output Current: 100mA * 2MHz Switching Frequency * 4.5V/5.0V Fixed Output Voltage * VIN Range: 2.7V ~ VOUT * Automatic Soft-Start. * No Inductors * Less than 1μA of Shutdown Current ORDERING INFORMATION Ordering Number L5200L-AD-SM1-R L5200L-45-AG6-R L5200L-50-AH6-R Note: xx: Output Voltage, Refer to Marking Information www.unisonic.com.tw Copyright © 2014 Unisonic Technologies Co., Ltd Package MSOP-8 SOT-26 TSOT-26 Packing Tape Reel Tape Reel Tape Reel 1 of 7 QW-R502-029.E L5200 CMOS IC MARKING INFORMATION PACKAGE VOLTAGE CODE MARKING MSOP-8 45: 4.5V 50: 5.0V AD :ADJ 6 SOT-26 TSOT-26 LE G 2 3 PIN CONFIGURATIONS SOT-26/TSOT-26 MSOP-8 C+ 1 VIN 2 C- 3 8 VOUT UTC L5200-ADJ PGND 4 4 Voltage Code 1 5 7 FB 6 SHDN 5 SGND VOUT 1 GND 2 SHDN 3 UTC L5200-XX (Fixed) 6 C+ 5 VIN 4 C- PIN DESCRIPTION L5200-ADJ MSOP-8 1 PIN NO. L5200-xx SOT-26/TSOT-26 6 PIN NAME C+ 2 5 VIN 3 4 C¯ 4, 5 2 GND 6 3 SHDN FUNCTION Flying Capacitor Positive Terminal Input Supply Voltage, should be bypassed with a 1μF~4.7μf low ESR ceramic capacitor. Flying Capacitor Negative Terminal Ground terminal, should be tied to a ground plane for best performance Shutdown Mode, Active-Low Input. A low on SHDN disables the L5200 series. SHDN must not be allowed to float. Feedback Input Pin for Adjustable output. An output divider should be connected from VOUT to FB to program the output voltage. Regulated Output Voltage, should be bypassed with a 1μF~4.7μF low 8 1 VOUT ESR ceramic capacitor as close as possible to the pin for best performance X : The pin is Inexistent for SOT-26 and TSOT-26 package. 7 X FB UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW-R502-029.E L5200 CMOS IC BLOCK DIAGRAM UTC L5200 Adjustable version (MSOP-8) UTC L5200 fixed version (SOT-26/TSOT-26) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW-R502-029.E L5200 CMOS IC ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Input Voltage(to GND) VIN -0.3 ~ 6 V Charge Pump Voltage(to GND) VOUT -0.3 ~ 5.5 V V SHDN -0.3 ~ (VIN+0.3) Shutdown Voltage(to GND) V Maximum DC Output Current (Note 1) IOUT 150 mA VOUT Short-Circuit Duration Indefinite Operating Temperature TOPR -20 ~ +85 °C Storage Temperature TSTG -40 ~ +150 °C Notes 1: Based on long-term current density limitations. 2: Stressed above Absolute Maximum Ratings may impair life or cause permanent damage to the device. 3. The device is guaranteed to meet performance specification within 0℃~+70℃ operating temperature range and assured by design from -20℃~+85℃, characteristic and correlation with static process control. ELECTRICAL CHARACTERISTICS (TA =25°C, VIN =3.6V, CFLY=1μF, CIN=1μF, COUT=1μF, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP Input Supply Voltage Range VIN * 2.7 L5200-4.5V 4.41 4.5 Output Voltage VOUT L5200-5.0V IOUT≤100mA * 4.9 5 VIH * 1.3 Shutdown Input Threshold VIL * Feedback Voltage (For L5200-ADJ) * 1.217 1.268 VFB Output Ripple Voltage(For L5200-fixed) VIN=3V, IOUT=100mA 30 VR IOUT=0mA, SHDN =VIN * 1.7 Operating Supply Current ICC I SHDN SHDN =0V, VOUT=0V * Shutdown Current SHDN =VIN IIH * -1 Shutdown Input Current SHDN =0V * -1 IIL Feedback Input Current (For L5200-ADJ) VFB=1.4V * -50 IFB VIN=3V, IOUT=100mA VFB=0V Open-Loop Output Resistance ROL 9.2 (ROL ≡ (2VIN – VOUT)/IOUT) Switching Frequency FOSC 1 Efficiency (For UTC L5200-fixed) 80 η VIN=3V, IOUT=50mA VIN=3V, IOUT=0mA 0.8 Soft Start Time tON 10%~90% Note: * stand for specifications which apply over the designed operating temperature range. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MAX VOUT 4.59 5.1 0.4 1.319 5 1 1 1 50 UNIT V V V V V V mVP-P mA μA μA μA nA Ω MHz % ms 4 of 7 QW-R502-029.E L5200 CMOS IC TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW-R502-029.E L5200 TYPICAL CHARACTERISTICS (L5200-5.0V) Output Voltage (V) Output Voltage (V) CMOS IC No Load Supply Current vs Supply Voltage 6 Oscillator Frequency vs Supply Voltage 3.0 CIN = COUT = CFLY = 1μF VSHDN = VIN 2.8 2.6 5 Ta = 25℃ 2.4 Ta = 25℃ 2.2 Ta = -40℃ 2.0 Ta = 85℃ Ta = 85℃ 1.8 4 1.6 Ta = -40℃ 1.4 1.2 3 2.7 3.0 3.3 3.6 3.9 Supply Voltage (V) 4.2 4.5 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 1.0 2.7 3.0 3.3 3.6 3.9 4.2 4.5 Supply Voltage (V) 6 of 7 QW-R502-029.E L5200 CMOS IC TYPICAL CHARACTERISTICS (L5200-5.0V) (cont.) Output Ripple VOUT (AC COUPLED) 20mV/DIV Load Transient Response IL 10mA ~ 90mA 50mA/DIV COUT = 1μF COUT = 3.3μF COUT = 10μF VOUT (AC COUPLED) 50mV/DIV VIN = 3.3V IL = 100mA 200ns/DIV VIN = 3.3V COUT = 1μF 10μs/DIV UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 7 QW-R502-029.E