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LM27952SDX/NOPB |LM27952SDXNOPBNSN/a40260avaiWhite LED Adaptive 1.5X/1X Switched Capacitor Current Driver 14-WSON -40 to 85


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LM27952SDX/NOPB
White LED Adaptive 1.5X/1X Switched Capacitor Current Driver 14-WSON -40 to 85
LM27952
VIN
C2+
3.3 μF
C1+
C1-
1 μF
VIN = 3.0V - 5.5V
IDX = 30 mA max EN
COUT
CIN
LM27952
www.ti.com
SNVS364B –MAY 2005–REVISED MAY 2013
LM27952 White LED Adaptive 1.5X/1X Switched Capacitor Current Driver
Checkfor Samples: LM27952
1FEATURES APPLICATIONS Drives upto4 LEDs with upto 30mA each • White LED Display Backlights Regulated current sources with 0.2%(typ.) • White LED Keypad Backlights
matching • General Purpose LED Lighting 3/2x,1x Gain transition based on LEDVF
DESCRIPTION• Peak Efficiency Over 85%

The LM27952isa switched capacitor white-LED• Input Voltage Range: 3.0Vto 5.5V• PWM Brightness Control Very Small Solution Size- NO INDUCTOR• Fixed 750kHz Switching Frequency• <1µA Shutdown Current 14-pin WSON Package: 4.0mmX 3.0mmX
0.8mm
Typical Application Circuit
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