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Microchip MCP1640 | Demoboard MCP1640 Family Data Sheet Boost Regulator
0.65V Start-Up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option
Overview
| Topology | Boost Converter |
| Input voltage | 0.65-5.5 V |
| Switching frequency | 425-575 kHz |
| Output 1 | 5.5 V / 0 A |
Description
The MCP1640/B/C/D is a compact, high-efficiency,fixed frequency, synchronous step-up DC-DC converter. It provides an easy-to-use power supply solution for applications powered by either single-cell, two-cell, or three-cell alkaline, NiCd, NiMH, and singlecell Li-Ion or Li-Polymer batteries
Features
- AEC-Q100 Qualified
- Up to 96% Typical Efficiency
- Passes automotive AEC-Q100 reliability testing
- 800 mA Typical Peak Input Current Limit:
- IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
- IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT
- IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT
- Low Start-Up Voltage: 0.65V, typical 3.3V VOUT@ 1 mA
- Low Operating Input Voltage: 0.35V, typical 3.3V VOUT @ 1 mA
- Adjustable Output Voltage Range: 2.0V to 5.5V
- Maximum Input Voltage VOUT < 5.5V
- Automatic PFM/PWM Operation(MCP1640/C):
- PFM Operation Disabled (MCP1640B/D)
- PWM Operation: 500 kHz
- Low Device Quiescent Current: 19 μA, typical PFM Mode (not switching)
- Internal Synchronous Rectifier
- Internal Compensation
- Inrush Current Limiting and Internal Soft Start
- Selectable, Logic Controlled Shutdown States:
- True Load Disconnect Option (MCP1640/B)
- Input to Output Bypass Option (MCP1640C/D)
- Shutdown Current (All States): < 1 μA
- Low Noise, Anti-Ringing Control
- Over temperature Protection
- Available Packages:
- 6-Lead SOT-23
- 8-Lead 2 mm x 3 mm DFN
Typical applications
- Portable Products, Bluetooth Headsets
- One, Two and Three Cell Alkaline and NiMH/NiCd, Single-Cell Li-Ion to 5V Converters, Li Coin Cell Powered Devices
- Wireless Sensors, Handheld Instruments, GPS Receivers
- +3.3V to +5.0V Distributed Power Supply
- Personal Medical Products
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 4.7 µH, 1 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current1 A | Saturation Current0.8 A | Self Resonant Frequency65 MHz | MountSMT | ||||
| WE-TPC SMT Tiny Power Inductor, 4.7 µH, 1.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current1.2 A | Saturation Current0.9 A | Self Resonant Frequency75 MHz | MountSMT | ||||
 | WE-TPC SMT Tiny Power Inductor, 4.7 µH, 1.55 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current1.55 A | Saturation Current1.7 A | Self Resonant Frequency60 MHz | MountSMT | ||||
 | WE-TPC SMT Tiny Power Inductor, 4.7 µH, 2.4 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current2.4 A | Saturation Current1.95 A | Self Resonant Frequency40 MHz | MountSMT |