Microchip MCP1640BT DC-DC Boost Step-Up Regulator Adjustable 2V-5.5V Output
Microchip MCP1640BT synchronous boost step-up DC-DC regulator with adjustable 2V to 5.5V output, up to 96% efficiency, in SOT-23-6 package.
The Microchip MCP1640BT DC-DC Boost Step-Up Regulator is a compact, high-efficiency, fixed-frequency synchronous step-up converter, offering efficiency of up to 96% in an SOT-23-6 package.
The MCP1640BT provides an adjustable output from 2V to 5.5V and is designed for devices powered by a wide range of battery sources, including single-cell, two-cell, or three-cell alkaline, NiCd, or NiMH batteries, as well as one-cell Li-Ion or Li-Polymer batteries. Its advanced low-voltage technology allows the device to start up from an input as low as 0.65V without high inrush current or output voltage overshoot.
Key Features
- Integrated Switches: Includes a low-resistance N-channel boost switch and a synchronous P-channel switch to minimise power loss.
- Automatic Mode Switching: Operates automatically in PFM or PWM mode to suit varying load conditions.
- Low Quiescent Current: Consumes only 19µA in PFM mode under no-load conditions.
- True Load Disconnect: In shutdown mode (EN = GND), provides a complete disconnect between input and output, with a shutdown current of less than 1µA.
- Comprehensive Protection: Includes inrush current limiting, internal soft-start, over-temperature protection, and low-noise anti-ringing control.
- Simplified Design: All necessary compensation and protection circuitry is integrated internally, reducing the number of external components required.
Technical Specifications
- Topology: Synchronous Boost (Step-Up)
- Input Voltage Range: 0.65V to 5.5V
- Output Voltage Range: Adjustable from 2V to 5.5V
- Package: SOT-23-6
- Dimensions: Width 3.3, Depth 1.5, Height 4.3
- Weight: 0.047 g
Applications
Suited to portable, battery-powered devices where compact size, efficiency and low quiescent current are required. The regulator can be used to power devices from single or multi-cell alkaline, NiCd, NiMH, Li-Ion, or Li-Polymer battery sources.
Choose the Microchip MCP1640BT when a compact, high-efficiency step-up regulator with an adjustable 2V to 5.5V output is required.
- Portable, battery-powered devices
- Devices powered by single-cell, two-cell, or three-cell alkaline, NiCd, or NiMH batteries
- Devices powered by one-cell Li-Ion or Li-Polymer batteries
- Topology: Synchronous Boost (Step-Up)
- Input Voltage Range: 0.65V to 5.5V
- Output Voltage Range: Adjustable from 2V to 5.5V
- Package: SOT-23-6
- Efficiency: Up to 96%
- Quiescent Current: 19µA in PFM mode (no-load)
- Shutdown Current: Less than 1µA
- Special Feature: Automatic PFM/PWM mode switching
- Special Feature: True load disconnect in shutdown mode
- Special Feature: Inrush current limiting, internal soft-start, over-temperature protection
- Special Feature: Integrated compensation and protection circuitry
- Width: 3.3
- Depth: 1.5
- Height: 4.3
- Weight: 0.047 g
Documents
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