MCP1661

In Production

The MCP1661 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up DC-DCconverter which integrates a 36V, 800 mΩ NMOS switch. It provides a space-efficient high-voltage step-up power supply solution for applications powered by either two-cell or three-cell alkaline, Lithium, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries.

Microchip Technology MCP1661 Product Info

16 April 2026 0

Parameters

VIN Min V (volt)	2.4
VIN Max V (volt)	5.5
VOUT Max V (volt)	32.0

Features

Up to 92% Efficiency
High Output Voltage Range: up to 32V
IOUT> 200 mA @ 5.0V VIN, 12V VOUT
IOUT> 125 mA @ 3.3V VIN, 12V VOUT
IOUT> 100 mA @ 4.2V VIN, 24V VOUT
Input Voltage Range: 2.4V to 5.5V
UVLO@VIN Rising: 2.3V, typical
UVLO@VIN Falling: 1.85, typical
No Load Input Current: 250 µA, typical
Sleep mode with 200 nA Typical Quiescent Current
PWM Operation with Skip mode: 500 kHz
Feedback Voltage Reference: VFB= 1.227V
Cycle-by-Cycle Current Limiting
Internal Compensation
Inrush Current Limiting and Internal Soft-Start
Feedback pin shorted to GND
Disconnected feedback divider
Overtemperature Protection
Easily Configurable for SEPIC or Flyback Topologies
Available Packages: 5-Lead SOT-23 or 2x3 8-Lead TDFN

Description

The MCP1661 device is a compact, high-efficiency, fixed-frequency, non-synchronous step-up DC-DCconverter which integrates a 36V, 800 mΩ NMOS switch. It provides a space-efficient high-voltage step-up power supply solution for applications powered by either two-cell or three-cell alkaline, Lithium, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries.

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ELECTRONIC COMPONENTS
All In One Distributor

MCP1661

Microchip Technology MCP1661 Product Info

Parameters

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

MCP1661

Microchip Technology MCP1661 Product Info

Parameters

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor