60mA High Voltage Linear Regulator
LD6903
6/6/06
REV:01
General Description
The LD6903 is a high voltage, micropower l...
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...