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Our extensive array of analog controller products meets the diverse requirements of designs for the mobile device, portable computer, telecommunications and industrial markets. With their combination of advanced IC processes, packaging technology and system design optimization, these products offer wide input-voltage ranges, high efficiency, small form factors, fast transient response, low ripple, low noise, low Iq and low EMI.

Devices in our large portfolio of easy-to-use buck, boost, flyback, forward and push-pull DC-DC controllers are excellent options for implementing many telemetry and control features via PMBus™ or an I2C interface, such as current limits, temperature, output current, output voltage, switching frequency, power good, soft start and more.

Control Methods

  • Pulse-Width Modulation (PWM)
  • Constant-On-Time (COT)

Protection Features

  • Output Overvoltage Protection (OVP)
  • Undervoltage Lockout (UVLO)
  • Over Current Protection (OCP)
  • Over Temperature Protection (OTP)

How Can Analog DC-DC Controllers Solve Your Design Challenges?


  • Optimizing power supplies for rugged and extreme operating conditions
  • Applications requiring high input power and various levels of output power
  • Applications requiring wide input voltage ranges
  • Powering portable applications requiring extended battery life and low self-consumption during standby

Buck Controllers

Our selection of synchronous and asynchronous buck controllers offers a wide input voltage range up to 75V. This versatile family of products with ultra-low standby quiescent current increases light-load efficiency and extends battery life in portable and battery-operated applications.

  • Synchronous and asynchronous buck controllers
  • Wide input voltage ranges up to 75V

Boost Controllers

We offer a broad line of high-performance, step-up boost controller ICs with both synchronous and nonsynchronous switches. Key features include a wide input voltage range, high switching frequency, high-efficiency operation and low quiescent current. This combination allows for very small, low-profile boost switching regulation circuit implementations with minimal external components.

  • Supports alternative topologies such as SEPIC or flyback

Flyback/Forward/Push-Pull Controllers

Flyback controllers, forward controllers and push-pull controllers provide simple and cost-effective replacements to support both offline or DC/DC conversion for systems needing galvanic isolation in various flyback, SEPIC, Ćuk, half-bridge or full-bridge switching power configurations.

  • Support both offline or DC/DC conversion for systems needing galvanic isolation

Products


MIC2128

75V Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start

MIC28514

75V/5A DC-DC Switching Buck Regulator with External Soft Start

MIC28515

75V/5A DC-DC Switching Buck Regulator with Mode Select

MIC45404

19V/5A Ultra-Low Profile Synchronous Step Down Power Module with Hyper Speed Control® Architecture

Design Resources


MPLAB® Analog Designer

Provides design suggestions for common circuit needs, estimates performance for common modifications, and can export to MPLAB® Mindi™ Analog Simulator for verification.

MPLAB® Mindi™ Analog Simulator

Uses a SIMetrix/SIMPLIS environment to model circuit behavior, reducing design time with software debugging for initial design verification.

Power Check Design Service

Provides advice on your exact physical circuit layout, sharing best practices from an experienced power supply designer so that physical hardware will match simulations.

The Microchip Difference


We provide a rapidly expanding portfolio of analog controller products to serve the mobile device, portable computer, telecommunications and industrial markets. By combining advanced IC process, packaging technology and system design optimization, our products offer wide-input-voltage-ranges, high-efficiency, small-form-factor, fast transient response, low ripple, low noise, low Iq and low EMI.

These products are easy to use via PMBus™ or an I2C interface for many telemetry and control features, such as current limits, temperature, output current, output voltage, switching frequency, power good, soft start and more.

PWM Controllers


View All Parametrics
Product Status Automotive Recommended 5K Pricing Supported Topologies Supported Outputs Minimum Input Voltage (V) Maximum Input Voltage (V) Minimum Output Voltage (V) Maximum Output Voltage (V) PFM Discontinuous Hyperlight load or Skip Mode Typical Tolerance (%) Duty Cycle Max (%) Operating Frequency (Hz) External Clock Sync Power Good Signal Soft Start Internal Compensation Internal Voltage Bias Enable Pin Current Limit / Short Circuit Protection Input UVLO Typ (V) Operating Supply Current (mA) Iq Off (µA) Packages
AAC243 In Production $0.94 1 0 30 4.95 5.05 False 47-57kHz 8/SOIC
HV9150 In Production No $0.79 0 0 0 2.7 12 False 87.5 False False False False False False False 0 0 0 16/VQFN
LX7309 In Production No $0.39 1 7 80 0.2 80 False 100-1000kHz 24/VQFN
MIC2101 In Production No $0.80 Sync. Buck 1 4.5 38 0.8 24 True ±1 0.85 200K to 600K True True True True True True 4.2 0.4 0.1 16/VQFN
MIC2102 In Production No $0.83 Sync. Buck 1 4.5 38 0.8 24 ±1 0.85 200K to 600K True True True True True True 4.2 2.1 0.1 16/VQFN
MIC2103 In Production No $1.00 Sync. Buck 1 4.5 75 0.8 24 True ±1 0.85 200K to 600K True True True True True True 4.2 0.4 0.1 16/VQFN
MIC2104 In Production No $1.00 Sync. Buck 1 4.5 75 0.8 24 ±1 0.85 200K to 600K True True True True True True 4.2 2.1 0.1 16/VQFN
MIC2111B In Production No $0.72 Buck 1 3.3 5 0 0 True 1 200k - 2M False True False False False False False 0 0 0 20/WQFN
MIC2124 In Production No $0.76 Sync. Buck 1 3 18 0.8 ±1 0.91 300K True True True True 2.7 1.4 1 10/MSOP
MIC2125 Not Recommended for new designs Consider: MIC2101 No Call for pricing COT 1 4.5 28 0.6 24 True 1 85 750000 False True True True True True True 4.2 0.34 0.1 Please call for package information
MIC2126 Not Recommended for new designs Consider: MIC2101 No Call for pricing COT 1 4.5 28 0.6 28 False 1 85 650000 False True True True True True True 4.2 1.1 0.1 Please call for package information
MIC2130 In Production No $1.61 Sync. Buck 1 8 40 0.7 ±2 0.92 150K or 400K True True True True True 1.1 4 180 16/TSSOP, 16/VQFN
MIC2131 In Production No $1.69 Sync. Buck 1 8 40 0.7 ±2 0.92 150K or 400K True True True True True 1.1 4 180 16/TSSOP, 16/VQFN
MIC2150 In Production No $2.60 Sync. Buck 2 4.5 14.5 0.7 ±1 0.8 500K True True True True True 2.03 4.2 50 24/VQFN
MIC2151 In Production No $2.54 Sync. Buck 2 4.5 14.5 0.7 ±1 0.83 300K True True True True True 2.03 4.2 50 24/VQFN
MIC2155 In Production No $2.16 Sync. Buck 1 4.5 14.5 0.7 3.6 ±1 0.8 500K True True True True True True 6 210 32/VQFN
MIC2164 In Production No $0.75 Sync. Buck 1 3 28 0.8 5.5 ±1 300K, 600K, 1M True True True True True 2.7 1.4 800 10/MSOP
MIC2164C In Production No $0.70 Sync. Buck 1 3 28 0.8 5.5 ±3 0.87 270K True True True True True 2.7 1.4 800 10/MSOP
MIC2165 In Production No $1.03 Sync. Buck 1 4.5 28 0.8 5.5 True ±1 0.82 600K True True True True True 4.2 0.45 5 10/MSOP
MIC2166 In Production No $0.97 Sync. Buck 1 4.5 28 0.8 5.5 False ±1 0.82 600K False True True True True True True 4.2 0.95 5 10/MSOP
MIC2168 In Production No $1.52 Sync. Buck 1 3 14.5 0.8 ±1 0.9 1.0M True True True True True 1.6 50 10/MSOP
MIC2169 In Production No $1.48 Sync. Buck 1 3 14.5 0.8 ±1 0.92 500K True True True True 1.5 10/MSOP
MIC2169A In Production No $1.48 Sync. Buck 1 3 14.5 0.8 ±1 0.92 500K True True True True 1.5 50 10/MSOP
MIC2169B In Production No $1.41 Sync. Buck 1 3 14.5 0.8 ±1 0.92 500K True True True True 1.5 50 10/MSOP
MIC2176 In Production No $1.30 Sync. Buck 1 4.5 75 0.8 ±1 100K, 200K, or 300k True True True True True 3.85 1.4 700 10/MSOP
MIC2182 In Production No $2.49 Sync. Buck 1 4.5 32 1.25 6 True ±1 0.86 300K True True True True True 2.5 1.6 0.1 16/SSOP, 16/SOIC
MIC2183 In Production No $2.56 Sync. Buck 1 2.9 14 1.3 12 ±1 1 200K / 400K True True True True True 1.7 0.5 16/QSOP, 16/SOIC
MIC2184 In Production No $2.56 Async. Buck 1 2.9 14 1.3 12 ±1 1 200K / 400K True True True True True 1.7 0.5 16/QSOP, 16/SOIC
MIC2185 In Production No $2.56 Boost, SEPIC, Cuk 1 2.9 14 True ±1 0.85 200K / 400K True True True True True 4.6 0.5 16/QSOP, 16/SOIC
MIC2186 In Production No $2.56 Boost, SEPIC, Flyback 1 2.9 14 True ±1 0.85 100/200/400K True True True True True 3.5 0.5 16/QSOP, 16/SOIC
MIC2193 In Production No $2.06 Sync. Buck 1 2.9 14 ±1 1 400K True True 2.65 1 8/SOIC
MIC2194 In Production No $1.54 Async. Buck 1 2.9 14 ±1 1 400K True True True 1 0.5 8/SOIC
MIC2196 In Production No $1.45 Boost, SEPIC 1 2.9 14 ±1 0.85 400K True True True 1 0.5 8/SOIC
MIC2198 In Production No $2.27 Sync. Buck 1 4.5 32 0.8 6 ±1 0.76 500K True True True 3.5 0.1 12/VDFN
MIC2199 In Production No $2.22 Buck 1 4.5 32 0.8 6 ±1 0.85 300K True True True 1.6 0.1 12/VDFN
MIC3808 In Production No $0.99 Push-Pull, Half Bridge, Full Bridge 1 8.3 15 0.49 Adj. to 1M True True True 12.5 1 8/MSOP, 8/SOIC
MIC3809 In Production No $1.07 Push-Pull, Half Bridge, Full Bridge 1 4.1 15 0.49 Adj. to 1M True True True 4.3 1 8/MSOP, 8/SOIC
MIC3838 In Production No $1.07 Push-Pull, Half Bridge, Full Bridge 1 8.3 15 0.49 Adj. to 1MHz True True True 12.5 1.5 10/MSOP
MIC3839 In Production No $1.07 Push-Pull, Half Bridge, Full Bridge 1 4.1 15 0.49 Adj. to 1MHz True True True 4.3 1.5 10/MSOP
MIC38C42 In Production No $0.99 Forward,Flyback 1 9 20 ±2 0.96 Adj. to 500kHz True 14.5 4 8/MSOP, 8/SOIC, 14/SOIC, 8/PDIP
MIC38C43 In Production No $0.93 Forward,Flyback 1 7.6 20 ±2 0.96 Adj. to 500kHz True 8.4 4 8/MSOP, 8/SOIC, 14/SOIC, 8/PDIP
MIC38C44 In Production No $0.99 Forward,Flyback 1 9 20 0 0 False ±2 0.5 Adj. to 500kHz False False False False True False False 14.5 4 0 8/MSOP, 8/SOIC, 14/SOIC, 8/PDIP, 14/PDIP
MIC38C45 In Production No $0.93 Forward,Flyback 1 7.6 20 ±2 0.5 Adj. to 500kHz True 8.4 4 8/MSOP, 8/SOIC, 14/SOIC, 8/PDIP
MIC38HC42 In Production No $1.11 Forward,Flyback 1 9 20 ±2 0.96 Adj. to 500kHz True 14.5 4 8/SOIC, 14/SOIC, 14/PDIP, 8/PDIP
MIC38HC43 In Production No $1.36 Forward,Flyback 1 7.6 20 ±2 0.96 Adj. to 500kHz True 8.4 4 8/SOIC, 14/SOIC, 14/PDIP, 8/PDIP
MIC38HC44 In Production No $1.11 Forward,Flyback 1 9 20 ±2 0.5 Adj. to 500kHz True 14.5 4 8/SOIC, 14/SOIC, 8/PDIP, 14/PDIP
MIC38HC45 In Production No $1.18 Forward,Flyback 1 7.6 20 ±2 0.5 Adj. to 500kHz True 8.4 4 8/SOIC, 14/SOIC, 14/PDIP, 8/PDIP
MIC9130 In Production No $2.39 Forward,Flyback 1 9 180 4.85 4.85 ±3 0.5 Adj. to 2.5MHz True True True True True 1.22 1.3 0.1 16/QSOP, 16/SOIC
MIC9131 In Production No $2.60 Forward,Flyback 1 9 180 4.85 4.85 ±3 0.75 Adj. to 2.5MHz True True True True True 1.22 1 0.1 16/QSOP, 16/SOIC
MCP1630 In Production Yes $0.79 Flyback, Boost, SEPIC, Cuk 1 3 5.5 - 0.99 Sync. to 1 MHz True True 2.85 2.8 8/MSOP, 8/DFN
MCP1631 In Production Yes $1.07 Flyback, Boost, SEPIC, Cuk 1 3 5.5 ±3 0.99 Sync. to 2 MHz True True True 2.8 3.7 2.4 20/QFN, 20/SSOP, 20/TSSOP
MCP1631HV In Production Yes $1.18 Flyback, Boost, SEPIC, Cuk 1 3.5 16 ±3 0.99 Sync. to 2 MHz True True True 3.7 4.4 20/SSOP, 20/TSSOP
MCP1631V In Production Yes $1.07 Flyback, Boost, SEPIC, Cuk 1 3 5.5 ±3 0.99 Sync. to 2 MHz True True True 2.8 3.7 2.4 20/QFN, 20/SSOP, 20/TSSOP
MCP1631VHV In Production Yes $1.18 Flyback, Boost, SEPIC, Cuk 1 3.5 16 ±3 0.99 Sync. to 2 MHz True True True 3.7 4.4 20/SSOP, 20/TSSOP
MCP1632 In Production Yes $0.73 Flyback, Boost, SEPIC, Cuk 1 3 5.5 ±4 0.85 300K / 600K True True True True 2.9 5 2 8/MSOP, 8/DFN
MCP1633 Samples Available Consider: MCP1631 Yes $1.13 Flyback, Boost, SEPIC, Cuk 1 3 5.5 0 0 False ±3 0.99 Sync. to 2.2 MHz True False False False False True True 2.8 3.5 2.4 16/QFN
MCP19035 In Production Yes $1.12 Sync. Buck 1 4.5 30 ±2.5 0.85 300K / 600K True True True True True 4.2 6 25 10/DFN
MIC2127A In Production Yes $0.76 COT 1 4.5 0 0.6 30 False 1 85 200KHz to 800KHz False True True True True True True 4.2 1.4 0.1 16/VQFN
MIC2128 In Production Yes $1.06 COT 1 4.5 75 0.6 30 False 1 85 270KHz to 800KHz False True True True True True True 4.2 1.4 0.1 16/VQFN