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LM2753SDX/NOPB |LM2753SDXNOPBNSN/a50000avaiHigh Power Switched Capacitor Voltage Convertor/Flash LED Driver 10-WSON -40 to 85


LM2753SDX/NOPB ,High Power Switched Capacitor Voltage Convertor/Flash LED Driver 10-WSON -40 to 85Features 3 DescriptionThe LM2753 is capable of driving a flash LED with a1• Input Voltage Range: 3 ..
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LM2753SDX/NOPB
High Power Switched Capacitor Voltage Convertor/Flash LED Driver 10-WSON -40 to 85
LM2753
VIN
CIN COUT
VOUT
C1+
C1-
VIN = 3 V - 5.5 V
IOUT 8
GND
VOUT = 5 V
Flash
LED
RFLASH
RTORCH
TORCH
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LM2753

SNVS353F –FEBRUARY 2005–REVISED SEPTEMBER 2016
LM2753 High-Power Switched-Capacitor Voltage Converter and Flash LED Driver Features
Input Voltage Range:3Vto 5.5V Regulated 5-V Output 250-mA Output Current Witha 3.6-V Input 400-mA Pulsed Output Current
(upto 500-ms Duration) 60-µA (Typical) Quiescent Current Pulse-Frequency Modulation (PFM) Regulation Inductor-Less Solution: Requires Only Three
Small Capacitors < 1-µA Typical Shutdown Current 10-pin WSON Package (No Pullback): 3 mm×3 mm× 0.8 mm Applications Cell-Phone Camera Flash Digital Still Cameras Fire-Alarm Notification Emergency Strobe Lighting Intruder Alert Notification Barcode Scanners Handheld Data Terminals General-Purpose Regulated Voltage Output, High-
Current Supply Description
The LM2753is capableof drivinga flash LED witha
pulsed currentof 400 mAatan input voltageof 3.6V. switched-capacitor doubler, the LM2753 providesa
regulated 5-V output (VOUT) over an input supply
rangeof3Vto 5.5 V. The switched output, IOUT,
takes less than 10 ns to turn on and provide
maximum currenttoa flash LED. Flash LED current set viaa ballast resistor. Continuous illumination
current (torch mode)is programmedby connectinga
resistor between IOUT and VOUT. This device uses
only three small, low-cost ceramic capacitors.
The LM2753 device uses pulse frequency modulation
(PFM) regulation. Typical operating frequency is
725 kHz. Under no-load conditions, the LM2753
operates on only 60 µA.If the outputis connectedto
ground, the charge pump staysin the gainof1, which
helps limit the input currentto 300 mA (typical).
Device Information(1)

(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Schematic
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