Datasheet4U Logo Datasheet4U.com

MIC2156 - PWM Synchronous Buck Controller

Download the MIC2156 datasheet PDF. This datasheet also covers the MIC2155 variant, as both devices belong to the same pwm synchronous buck controller family and are provided as variant models within a single manufacturer datasheet.

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.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MIC2155_MicrelSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number MIC2156
Manufacturer Micrel Semiconductor
File Size 575.62 KB
Description PWM Synchronous Buck Controller
Datasheet download datasheet MIC2156 Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
MIC2155 Two-Phase Single-Output PWM Synchronous Buck Controller Microchip
MIC2125 28V Synchronous Buck Controllers Microchip
MIC2126 28V Synchronous Buck Controllers Microchip
MIC2127A Synchronous Buck Controller Featuring Adaptive On-Time Control Microchip
MIC2128 Synchronous Buck Controller Microchip

Other Datasheets by 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

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
MIC2155/2156 www.DataSheet4U.com Two-Phase, Single-Output, PWM Synchronous Buck Control IC 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. A 1% output voltage tolerance allows the maximum level of system performance. Internal drivers with adaptive gate drive allow the highest efficiency with the minimum external components.