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LM2757TMX
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LM2757TMX

  • Category:Voltage regulator
  • Product Name:The PowerWise ® series switches off the high impedance output capacitor boost regulator
  • Manufacturers:NSC
  • Production Batch Number:10+11+
  • Encapsulation:SMD-12
  • Stock Status:There is stock
  • Stock Quantity:15400
  • Minimum order quantity: 1
  • Details:Click here to find pdf information on the LM2757TMX
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  • Product introduction

peculiarity

Dual gain converters (2X, 3/2X) with up to 93% efficiency.
The inductive solution uses only four small ceramic capacitors.
Total solution areaTrue input-output and input-output disconnection.
Up to 180 mA output current capability (5V).
Selectable 4.1V, 4.5V or 5.0V outputs.
Pre-tuning minimizes input current ripple.
1.24 MHz switching frequency, low noise, low ripple output voltage.
Integrated overcurrent and thermal shutdown protection.
Tiny 1.2mm × 1.6mm× 0.4mm pitch, 12 solder ball micro SMD package.

illustrate

The LM2757 is a constant, frequency-preregulated switched capacitor charge pump operating at 1.25 MHz to produce a regulated low noise output voltage. The device is configurable to deliver up to 100 mA at 4.1V, 110 mA at 4.5V, or 5V 180mA. Excellent efficiency, realized operating benefits are 3/2 or 2 depending on input voltage and output voltage options to select charge pumps without the use of inductors.

The LM2757 presents a high impedance at the V OUT pin when it is off. This allows the use of applications needed while the LM2757 off regulated output bus is driven by another supply.

A perfect fit for space-constrained, battery-powered applications, the LM2757 requires only four small, inexpensive ceramic capacitors. The LM2757 is a tiny 1.2mm × 1.6mm 12 solder ball micro SMD device. Built-in soft-start, overcurrent protection, and thermal shutdown are also included in this device.


apply


USB/USB OTG/HDMI power supply
Supercapacitor charger
Keypad LED driver
Audio amplifier power supply
Low current camera flash
Conversion of general-purpose lithium-ion batteries to 5V
Mobile phone SIM card

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Model Manufacturers lot number encapsulation illustrate
LM2757TMX NSC 10+11+ SMD-12 The PowerWise ® series switches off the high impedance output capacitor boost regulator

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