LM2757TM/NOPB
ActiveSWITCHED CAPACITOR BOOST REGULATOR WITH HIGH IMPEDANCE OUTPUT IN SHUTDOWN
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LM2757TM/NOPB
ActiveSWITCHED CAPACITOR BOOST REGULATOR WITH HIGH IMPEDANCE OUTPUT IN SHUTDOWN
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2757TM/NOPB |
|---|---|
| Current - Output | 180 mA |
| Frequency - Switching | 1.242 MHz |
| Function | Step-Up |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -30 °C |
| Output Configuration | Positive |
| Output Type | Programmable |
| Package / Case | DSBGA, 12-WFBGA |
| Supplier Device Package | 12-DSBGA |
| Synchronous Rectifier | False |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 2.7 V |
| Voltage - Output (Min/Fixed) | 5 V, 4.5 V, 4.1 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.09 | |
| 10 | $ 1.88 | |||
| 25 | $ 1.77 | |||
| 100 | $ 1.51 | |||
| Digi-Reel® | 1 | $ 2.09 | ||
| 10 | $ 1.88 | |||
| 25 | $ 1.77 | |||
| 100 | $ 1.51 | |||
| Tape & Reel (TR) | 250 | $ 1.00 | ||
| 500 | $ 0.88 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.42 | |
| 100 | $ 1.24 | |||
| 250 | $ 0.87 | |||
| 1000 | $ 0.70 | |||
Description
General part information
LM2757 Series
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 4.1 V, 110 mA at 4.5 V, or 180 mA at 5 V. 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 VOUTpin 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.
The LM2757 device comes in a tiny 12-pin 0.4-mm pitch DSBGA package. A perfect fit for space-constrained, battery-operated applications, the device requires only 4 small, inexpensive ceramic capacitors. Built-in soft-start, overcurrent protection, and thermal shutdown features are also included in this device.
Documents
Technical documentation and resources
