LTC3252

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Dual, Low Noise, Inductorless Step-Down DC/DC Converter

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Part Details

  • 2.7V to 5.5V Input Voltage Range
  • No Inductors
  • Typical Efficiency 50% Higher than LDOs
  • Spread Spectrum Operation
  • Low Input and Output Noise
  • Shutdown Disconnects Load from VIN
  • Dual Adjustable Independent Outputs (Range: 0.9V to 1.6V)
  • Output Current: 250mA Each Output
  • Low Operating Current: IIN = 60µA Typ (35µA with One Output Enabled)
  • Low Shutdown Current: IIN = 0.01µA Typ
  • Soft-Start Limits Inrush Current at Turn On
  • Short Circuit and Over Temperature Protected
  • Available in 4mm x 3mm 12-Pin DFN Package
LTC3252
Dual, Low Noise, Inductorless Step-Down DC/DC Converter
1.5V and 1.2V Output Voltages with Shutdown 1.5V/1.2V Efficiency vs Input Voltage Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 2

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTC3252
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
DC611A

LTC3252EDE Demo Board | Dual, Spread-Spectrum, Low Noise Inductorless, Step Down Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT1 = 1.5V @ 250mA, VOUT2 = 1.2V @ 250mA

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Product Details

Demonstration circuit 611 is a dual, spread-spectrum, step-down charge pump DC/DC converter featuring the LTC3252EDE. It produces regulated 1.5V and 1.2V output voltages at up to 250mA of output current each, from a 2.7V to 5.5V input. The unique spread spectrum architecture of the LTC3252 provides highly efficient, low noise operation. The circuit has a low external parts count and requires only five small surface mount capacitors and four tiny surface mount resistors.
DC611A
LTC3252EDE Demo Board | Dual, Spread-Spectrum, Low Noise Inductorless, Step Down Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT1 = 1.5V @ 250mA, VOUT2 = 1.2V @ 250mA
DC611A - Schematic

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