LD6903

60mA High Voltage Linear Regulator LD6903 6/6/06 REV:01 General Description The LD6903 is a high voltage, micropower linear regulator, which features wide input voltage, low-noise, low-dropout and low-quiescent current. The precision of feedback reference voltage is within ±1.5% and output current is up to 60mA. The LD6903 is available in a space saving SOT23-6 or SC70-6 package. +Patent pending Features z ±1.5% feedback reference z Shutdown current <1µA z High input voltage: up to 19V z Thermal shutdown and current limit protection z Vout discharge function z Soft start operation Applications z Microcontroller Power z Hand-Held Instruments Typical Application VIN/15.5V 0.1µF/X5R 3.3nF VIN OUT LD6903 CE R1/100K SS GND FB R2/9.09K VOUT/15V 2.2µF/X5R Fig.1 High voltage linear regulator application Leadtrend Technology Corporation LD6903-DS-01, May 2006 1 LD6903 VIN 15V 0.1µF/X5 15nF VIN OUT LD6903 CE SS GND FB R1 2.2µF/X5R 20mA R2 R3 2 WLED 3 WLED R1 62K 62K R2 3.24K 2K R3 47.5Ω 47.5Ω Fig.2 WLED driver application Leadtrend Technology Corporation LD6903-DS-01, May 2006 2 LD6903 Pin Configuration SOT-26 (TOP VIEW) CE SS FB 65 Y WP 03 12 4 3 VIN GND OUT 65 Y WP 03 12 4 3 Y The PB freed package is identified in embossed font YY, Y : Year code (D: 2004, E: 2005…..) WW, W: Week code P : LD69. (Product family code) ## : Production code Ordering Information Part number LD6903 PL LD6903 GL LD6903 PU LD6903 GU Package SOT-26 (PB FREE) SOT-26 (Gr...