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Microchip MCP16251 | Demoboard ARD00797
MCP16251 One-Cell Boost Converter with External UVLO Circuit Reference Design
Overview
| Topology | Boost Converter |
| Input voltage | 0.82-5.5 V |
| Output 1 | 5.5 V / 0.25 A |
| IC revision | A |
Description
Microchip’s MCP16251 device is a compact, high-efficiency, fixed-frequency, synchronous step-up DC-DC Converter. The very low quiescent current makes it ideal for battery-powered applications. Furthermore, the device provides a true output disconnect feature while in shutdown (EN = GND). The MCP16251 device consumes less than 0.6 μA from the battery when in the shutdown state. The MCP16251 automatically selects the best operating mode for efficiency: Pulse-Width Modulation (PWM) or Pulse-Frequency Modulation (PFM). The device has a very low (4 μA) quiescent current (not switching, measured at output), a wide input voltage range (0.35 to 5.5V) and a low start-up voltage (0.82V) at a 1 mA load current.
Features
- Up to 96% Typical Efficiency
- 4 μA Quiescent Current
- PFM Switching mode for Light Loads, High Efficiency and Extended Battery Run Time
- Low Input Start-up Voltage, Typically 0.82V at a 1 mA Load Current
- Low Shutdown Voltage (continuously operating down to 0.35V input under light loads)
- True Output Disconnect Shutdown Option
- 14 μA Typical No Load Input Current
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | Poles | L(mm) | Vaporphase process | 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 | – | Length2.78 mm | – | ||||
 | WE-TPC SMT Tiny Power Inductor, 4.7 µH, 1.35 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current1.35 A | Saturation Current1.7 A | Self Resonant Frequency84 MHz | MountSMT | – | Length2.8 mm | – | ||||
| 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 | – | Length3.8 mm | – | ||||
| WE-TPC SMT Tiny Power Inductor, 4.7 µH, 1.72 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Inductance4.7 µH | Rated Current1.72 A | Saturation Current1.65 A | Self Resonant Frequency70 MHz | MountSMT | – | Length4.8 mm | – | ||||
 | WS-DISV Small Compact SMT Flat Actuator with Top Tape 2.54 mm, –, 0.025 A | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | – | Rated Current0.025 A | – | – | – | Poles1 | Length3.48 mm | Vaporphase processYes |