Switched Capacitor Boost Regulator With High Impedance Output In Shutdown

The LM2757 is a constant frequency pre-regulated switched-capacitor Charge Pump that operates at 1.25 MHz to produce a low-noise regulated output voltage. The device 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.
The LM2757 presents a high impedance at the VOUT pin when shut down. This allows for use in applications that require the regulated output bus to be driven by another supply while the LM2757 is shut down.
A perfect fit for space-constrained, battery-operated applications, the LM2757 requires only 4 small, inexpensive ceramic capacitors. LM2757 is a tiny 1.2 mm X 1.6 mm 12bump micro SMD device. Built in soft-start, over-current protection, and thermal shutdown features are also included in this device.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM2757TM/NOPB Texas Instruments Switched Capacitor Boost Regulator with High Impedance Output in Shutdown 12-DSBGA -30 to 85
LM2757TMX/NOPB Texas Instruments Switched Capacitor Boost Regulator with High Impedance Output in Shutdown 12-DSBGA -30 to 85
LM2757 's PackagesLM2757 's pdf datasheet
LM2757TM
LM2757TMX




LM2757 Pinout, Pinouts
LM2757 pinout,Pin out
This is one package pinout of LM2757,If you need more pinouts please download LM2757's pdf datasheet.

LM2757 Application circuits
LM2757 circuits
This is one application circuit of LM2757,If you need more circuits,please download LM2757's pdf datasheet.


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