LM2753 Selling Leads, Price trend, LM2753 DataSheet download, circuit diagram from SeekIC.com

Application·Cell Phone Camera Flash·General Purpose Regulated Voltage Output, High Current SupplyPinoutSpecifications Switch Current 0.4 Amp Output Min 5 Volt Output Max 5 Volt Input Min Voltage 3 Volt Input Max Voltage 5.5 Volt Efficiency (peak) 68 % Frequency Min 72...

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SeekIC No. : 004395044 Detail

LM2753: Application·Cell Phone Camera Flash·General Purpose Regulated Voltage Output, High Current SupplyPinoutSpecifications Switch Current 0.4 Amp Output Min 5 Volt Output Max 5 Volt Inpu...

LM2753 Data Sheet

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Part Number:: LM2753
Supply Ability:: 5000

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1~5000

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Negotiable

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15 Days

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Product Details

Description

Application

·Cell Phone Camera Flash
·General Purpose Regulated Voltage Output, High Current Supply

Pinout

Connection Diagram

Specifications

Switch Current	0.4 Amp
Output Min	5 Volt
Output Max	5 Volt
Input Min Voltage	3 Volt
Input Max Voltage	5.5 Volt
Efficiency (peak)	68 %
Frequency Min	725 kHz
Frequency Max	725 kHz
Special Features	Flash-LED driver, 250mA continuous load and 400mA pulsed load
Adj Switch Frequency	No
Adjustable Output	No
On/Off Pin	Yes
PWM Mode	PFM Switched Capacitor Doubler
Topology	Boost
Step-Up	Yes
Inverting	No
RegType	Switched Cap Regulator
Temperature Min	-40 deg C
Temperature Max	85 deg C
PowerWise	No
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If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications. If Military/
Aerospace specified devices are required, please contact
the National semiconductor Sales/Office/Distributors for
availability and specifications.
V_IN Pin: Voltage to Ground.......................... −0.3V to 6.0V
EN, Flash pins: Voltage to GND ............−0.3V to (V_IN+0.3)
......................w/ 6.0V max
Continuous Power Dissipation (Note 3) .Internally Limited
Junction Temperature (TJ-MAX-ABS) .........................150
Storage Temperature Range .....................−65 to 150
Maximum Lead Temperature ....................................265
(Soldering, 10sec.)
ESD Rating (Note 4)
Human-body model:....................................................2kV
Machine model:......................................................... 200V

Description

The LM2753 is capable of driving a Flash LED with a pulsed current of 400mA at an input voltage of 3.6V. A switched capacitor doubler, the LM2753 provides a regulated 5V output (V_OUT) over an input supply range of 3.0V to 5.5V. The switched output, I_OUT, takes less than 10ns to turn on and provide maximum current to a Flash LED. Flash LED current is set via a ballast resistor. Continuous illumination current (Torch Mode) is programmed by connecting a resistor between I_OUT and V_OUT. This device uses only three small, low-cost ceramic capacitors.

LM2753 uses Pulse Frequency Modulation (PFM) regulation. Typical operating frequency is 725kHz. Under no-load conditions, LM2753 operates on only 60µA. If the output is connected to ground, the charge pump stays in the gain of 1 which helps limit the input current to 300mA (typ.)

LM2753 is available in a 10-pin No Pullback Leadless Leadframe Package: LLP-10.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM2753SD	CMOS7	0	16561	0	0	954000	4	270700104
LM2753SDX	CMOS7	0	16561	0	0	954000	4	270700104

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

More Application Notes

Title	Size in Kbytes	Date
AN-1269: Application Note 1269 LM2750-5.0 Evaluation Board	233 Kbytes	2-Oct-03	Download
AN-1302: Application Note 1302 LM2750-ADJ Evaluation Board	194 Kbytes	26-Mar-04	Download
AN-1777: Application Note 1777 Designing Energy-Efficient Handheld Illumination Solutions	156 Kbytes	27-Feb-08	Download
AN-1777 (Chinese): Application Note 1777 Designing Energy-Efficient Handheld Illumination Solutions	306 Kbytes		640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">
AN-1546: Application Note 1546 LM2754 Evaluation Board	927 Kbytes	3-Nov-06	Download
AN-1546 (Chinese): Application Note 1546 LM2754 Evaluation Board	393 Kbytes		640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">
AN-1778: Application Note 1778 LM2755 Charge Pump LED Controller with I2C Compatible Interface in SMD ?	4110 Kbytes	30-Apr-08	Download
AN-1779: Application Note 1779 LM2756 Multi-Display Inductorless LED Driver with 32 Exponential Dimming Steps in SMD	2288 Kbytes	31-Mar-08	Download
AN-1695: Application Note 1695 LM2758 Flash LED Driver Evaluation Board	347 Kbytes	9-Apr-08	Download
AN-1731: Application Note 1731 LM2757 Evaluation Board	573 Kbytes	19-Feb-08	Download

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LM2753

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