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MIC2156 Datasheet Pwm Synchronous Buck Controller

Manufacturer: Micrel Semiconductor

Overview: MIC2155/2156 www.DataSheet4U.com Two-Phase, Single-Output, PWM Synchronous Buck Control IC.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number MIC2156
Manufacturer Micrel Semiconductor
File Size 575.62 KB
Description PWM Synchronous Buck Controller
Datasheet MIC2156 MIC2155 Datasheet (PDF)

General Description

The MIC2155 and MIC2156 are a family of two-phase, single-output synchronous buck control ICs featuring small size, high efficiency, and a high level of flexibility.

The ICs implement a 500kHz (MIC2155) and 300kHz (MIC2156) voltage mode PWM control, with the outputs switching 180° out of phase.

The result of the out-of-phase operation is 1MHz (or 600kHz) input ripple with ripple current cancellation, minimizing the required input filter capacitance.

Key Features

  • Synchronous buck control ICs with outputs switching 180° out-of-phase.
  • Remote sensing with internal differential amplifier.
  • 4.5V to 14.5V input voltage range.
  • Adjustable output voltages down to 0.7V.
  • 1% output voltage accuracy.
  • Starts up into a pre-biased output.
  • 500kHz PWM operation (MIC2155).
  • 300kHz PWM operation (MIC2156).
  • Adaptive gate drive allows efficiencies over 95%.
  • Adjustable current limit with n.

More Datasheets from Micrel Semiconductor

Part Number Description
MIC2150 2-Phase Dual Output PWM Synchronous Buck Controller
MIC2151 2-Phase Dual Output PWM Synchronous Buck Controller
MIC2155 PWM Synchronous Buck Controller
MIC2159 Step-Down Converter
MIC2101 38V Synchronous Buck Controllers
MIC2102 38V Synchronous Buck Controllers
MIC2103 Synchronous Buck Controllers
MIC2104 Synchronous Buck Controllers
MIC2111 Single-Phase Multi-Mode High-Performance Step-Down PWM Controller
MIC2111B Step-Down Controller

MIC2156 Distributor