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MCP1663T-E/MNY

MCHPMCP1663T-E/MNY

Microchip Technology
Boost Switching Regulator IC Positive Adjustable 2.4V 1 Output 375mA 8-WFDFN Exposed Pad
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Overview

The MCP1663 is a high-voltage, fixed-frequency, peak current mode step-up DC-DC converter designed to deliver up to 32V from low-voltage input sources. It operates with an input voltage range of 2.4V to 5.5V, making it ideal for applications powered by Li-Ion, Li-Polymer, or multi-cell alkaline batteries. The device integrates a 1.8A low-side switch and features internal compensation to reduce external component count.

Why Choose This Part

The MCP1663 offers a high level of integration with features like soft start, inrush current limiting, and overvoltage protection in a compact 2x3 mm TDFN package. Its high switching frequency allows for the use of small surface-mount inductors and capacitors, while the 0.3uA shutdown current significantly extends battery life in portable applications.

Applications

LCD Bias Supply
Generating the high-voltage rails required for small to medium-sized LCD panels and OLED displays from a single-cell battery.
LED Backlighting
Driving long strings of white LEDs in series for uniform brightness in portable handheld devices.
Flash Memory Programming
Providing the 12V or higher programming voltages needed for certain EEPROM or Flash memory architectures.
Industrial Sensors
Boosting 3.3V or 5V rails to higher voltages required for specialized analog front-ends or transducers.

Key Specifications

Function Step-Up
Topology Boost
Output Type Adjustable
Mounting Type Surface Mount
Package / Case 8-WFDFN Exposed Pad
Current - Output 375mA
Number of Outputs 1
Output Configuration Positive
Frequency - Switching 500kHz
Operating Temperature -40degC ~ 125degC (TA)
Synchronous Rectifier No
Voltage - Input (Max) 5.5V
Voltage - Input (Min) 2.4V
Voltage - Output (Max) 32V
Supplier Device Package 8-TDFN (2x3)
Voltage - Output (Min/Fixed) 2.4V

Getting Started

To evaluate the MCP1663, engineers can use the MCP1663 IC Evaluation Board (ADM00554) which demonstrates a typical boost application. Design requires a standard calculation of the feedback resistor divider to set the output voltage between 2.4V and 32V, and selecting an inductor capable of handling the 1.8A peak switch current.

Also Consider

TPS61040 TITexas Instruments - An alternative high-voltage boost converter supporting up to 28V output, commonly used for LCD and OLED biasing.

Categories

Power Management > Switching Regulators