Manufacturer Part Number
MCP1643T-I/MS
Manufacturer
Microchip Technology
Introduction
The MCP1643T-I/MS is a compact, highly efficient, fixed frequency, step-up DC-DC regulator in a 8-MSOP package suitable for driving LEDs.
Product Features and Performance
Integrated internal switch
Step-Up (Boost) topology
Single output
High efficiency due to low output ripple
Output voltage is fixed at 5V
Can supply up to 550mA current per channel
Operates at a switching frequency of 1MHz
Supports PWM dimming for LED applications
Stable with small external components
Product Advantages
Low start-up voltage (0.5V min)
Suitable for battery-operated devices due to low voltage operation
Thermal shutdown protection
Overcurrent protection
Key Technical Parameters
Voltage - Supply (Min): 0.5V
Voltage - Supply (Max): 5V
Voltage - Output: 5V
Current - Output / Channel: 550mA
Frequency: 1MHz
Quality and Safety Features
Industry-grade temperature range: -40°C to 85°C
Protection against over-temperature and overcurrent events
Compatibility
Surface mount compatible with 8-TSSOP, 8-MSOP packages
Compatible with PWM dimming control methods for LEDs
Application Areas
Mainly used for LED backlighting in portable devices
Suitable for battery-powered applications
Product Lifecycle
Product Status: Active
No indication of discontinuation, hence long-term availability expected
Microchip typically provides support and possible upgrades for active components
Several Key Reasons to Choose This Product
Highly efficient boost regulator for LED applications
Flexibility with supply voltage from 0.5V to 5V
Designed for easy PCB layout with minimal external components
Reliable performance with built-in safety features
Supported by Microchip, a leader in power management solutions
Ideal for portable applications due to low power operation and small form factor