LM2757TM

LM2757TM, constant frequency pre-regulated switchedcapacitor charge pump, 1.25 MHz, 4.1V, 180 mA, LLP

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Price:: US $0.30~0.50 / piece [Get Latest Price]

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Qty (lots)	Price/lot
1 ~ 1000 :	0.50 / Piece
1001 ~ 10000 :	0.40 / Piece
10001 ~ 100000 :	0.30 / Piece

PartNumber:: LM2757TM

Brand:: Texas Instruments - TI | Pack: LLP | D/C: 13+

Availability:: Supply Ability: 100000/Day Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

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Products Upload time: 2013-06-17

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Part Number:LM2757TM
US $0.30 - 0.50
Quantity:

piece

Product Summary

The LM2757TM is a constant frequency pre-regulated switchedcapacitor charge pump that operates at 1.25 MHz to produce a low-noise regulated output voltage. The LM2757TM can be configured to provide up to 100 mA at 4.1V, 110 mA at 4.5V, or 180 mA at 5V. Excellent efficiency is achieved without the use of an inductor by operating the charge pump in a gain of either 3/2 or 2 according to the input voltage and output voltage option selection. Applications are (1)Keypad LED Drive; (2)USB/USB-OTG Power; (3)Cellular Phone SIM cards; (4)Audio amplifier power supplies; (5)Low-current Camera Flash; (6)General Purpose Li-Ion-to-5V Conversion; (7)Supercapacitor Charg.

Parametrics

LM2757TM absolute maximum ratings: (1)VIN Pin: Voltage to GND: -0.3V to 6.0V; (2)M0, M1 pins: Voltage to GND: -0.3V to 6.0V; (3)Continuous Power Dissipation (Note 4): Internally Limited; (4)Junction Temperature (TJ-MAX ): 150°C; (5)Storage Temperature Range: -65°C to +150°C; (6)Maximum Lead Temperature (Soldering, 10 sec.): 265°C; (7)ESD Rating (Note 5)Human Body Model: 2.5 kV.

Features

LM2757TM features: (1)Inductorless solution uses only 4 small ceramic capacitors; (2)True input-output and output-input disconnect; (3)Up to 180 mA output current capability (5V); (4)Selectable 4.1V, 4.5V or 5.0V output; (5)Pre-regulation minimizes input current ripple; (6)1.24 MHz switching frequency for a low-noise, low-ripple output voltage; (7)Efficient dual gain converter (2X, 3/2X); (8)Integrated Over Current Protection; (9)Integrated Thermal Shutdown Protection; (10)Tiny 1.2 mm X 1.6 mm X 0.4 mm pitch, 12–bump micro SMD package.