L5200L-50-SM1-R

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UNISONIC TECHNOLOGIES CO., LTD L5200 CMOS IC www.unisonic.com.tw 1 of 7 Copyright © 2016 Unisonic Technologies Co., Ltd QW-R502-029.F 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 ~ V OUT input with up to 100mA of output current. Low external parts counts (one flying capacitor and two small bypass capacitors at V IN and VOUT) make the UTC L5200-xx series ideally suited for small, battery-powered applications. A charge-pump architecture ma intains 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 V IN 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 * V IN Range: 2.7V ~ VOUT * Automatic Soft-Start. * No Inductors * Less than 1μA of Shutdown Current  ORDERING INFORMATION Ordering Number Package Packing L5200L-xx-SM1-R MSOP-8 Tape Reel L5200L-xx-AG6-R SOT-26 Tape Reel L5200L-xx-AH6-R TSOT-26 Tape Reel Note: xx: Output Voltage, Refer to Marking Information

UNISONIC TECHNOLOGIES CO., LTD 2 of 7 www.unisonic.com.tw QW-R502-029.F  MARKING INFORMATION PACKAGE VOLTAGE CODE MARKING MSOP-8 AD :ADJ SOT-26 TSOT-26 45: 4.5V 50: 5.0V 5 4 LE G Voltage Code  PIN CONFIGURATIONS MSOP-8 VOUT FB SHDN SGNDPGND VIN C + SOT-26/TSOT-26 C + VIN C - C - VOUT GND SHDN UTC L5200-ADJ UTC L5200-XX (Fixed)  PIN DESCRIPTION PIN NO. L5200-ADJ L5200-xx MSOP-8 SOT-26/TSOT-26 PIN NAME FUNCTION 1 6 C+ Flying Capacitor Positive Terminal 2 5 V IN Input Supply Voltage, s hould be bypassed with a 1 μF~4.7μf low ESR ceramic capacitor. 3 4 C¯ Flying Capacitor Negative Terminal 4, 5 2 GND Ground terminal, should be tied to a ground plane for best performance 6 3 SHDN Shutdown Mode, Active-Low Input. A low on SHDN disables the L5200 series. SHDN must not be allowed to float. 7 X FB Feedback Input Pin for Adjustable output. An output divider should be connected from VOUT to FB to program the output voltage. 8 1 V OUT Regulated Output Voltage, should be bypassed with a 1 μF~4.7μF low 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.

UNISONIC TECHNOLOGIES CO., LTD 3 of 7 www.unisonic.com.tw QW-R502-029.F  BLOCK DIAGRAM UTC L5200 Adjustable version (MSOP-8) UTC L5200 fixed version (SOT-26/TSOT-26)

UNISONIC TECHNOLOGIES CO., LTD 4 of 7 www.unisonic.com.tw QW-R502-029.F  ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Input Voltage(to GND) V IN -0.3 ~ 6 V Charge Pump Voltage(to GND) V OUT -0.3 ~ 5.5 V Shutdown Voltage(to GND) VSHDN -0.3 ~ (VIN+0.3) V Maximum DC Output Current (Note 1) I OUT 150 mA VOUT Short-Circuit Duration Indefinite Operating Temperature T OPR -20 ~ +85 °C Storage Temperature T STG -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 MAX UNIT Input Supply Voltage Range V IN *2 . 7 V OUT V VIH *1 . 3 V Shutdown Input Threshold VIL * 0.4 V Feedback Voltage (For L5200-ADJ) VFB * 1.217 1.268 1.319 V Output Ripple Voltage(For L5200-fixed) VR V IN=3V, IOUT=100mA 30 mV P-P Operating Supply Current I CC IOUT=0mA, SHDN =VIN * 1.7 5 mA Shutdown Current ISHDN SHDN =0V, VOUT=0V * 1 μA IIH SHDN =VIN * -1 1 μA Shutdown Input Current IIL SHDN =0V * -1 1 μA Feedback Input Current (For L5200-ADJ) IFB V FB=1.4V * -50 50 nA Open-Loop Output Resistance R OL VIN=3V, IOUT=100mA VFB=0V (ROL ≡ (2VIN – VOUT)/IOUT) 9.2 Ω Switching Frequency F OSC 1 MHz Efficiency (For UTC L5200-fixed) η V IN=3V, IOUT=50mA 80 % Soft Start Time t ON VIN=3V, IOUT=0mA 10%~90% 0.8 ms Note: * stand for specifications which apply over the designed operating temperature range.

UNISONIC TECHNOLOGIES CO., LTD 5 of 7 www.unisonic.com.tw QW-R502-029.F  TYPICAL APPLICATION CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD 6 of 7 www.unisonic.com.tw QW-R502-029.F  TYPICAL CHARACTERISTICS (L5200-5.0V) Output Voltage (V) Output Voltage (V) CIN = COUT = CFLY = 1μF Supply Voltage (V) No Load Supply Current vs Supply Voltage Ta = 85℃ Ta = 25℃ Ta = -40℃ 3.0 2.4 1.6 1.0 Supply Voltage (V) Oscillator Frequency vs Supply Voltage Ta = 85℃ Ta = 25℃ Ta = -40℃ VSHDN = VIN 2.8 2.6 2.2 2.0 1.8 1.4 1.2

UNISONIC TECHNOLOGIES CO., LTD 7 of 7 www.unisonic.com.tw QW-R502-029.F  TYPICAL CHARACTERISTICS (L5200-5.0V) (cont.) VOUT (AC COUPLED) 50mV/DIV Load Transient Response 10μs/DIVVIN = 3.3V IL 10mA ~ 90mA 50mA/DIV COUT = 1μF VOUT (AC COUPLED) 20mV/DIV Output Ripple 200ns/DIVVIN = 3.3V COUT = 10μF COUT = 3.3μF COUT = 1μF IL = 100mA 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.