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Overview
| Topology | Buck Converter |
| Input voltage | 5 V |
| Switching frequency | 900-1100 kHz |
| Output 1 | 3.3 V / 3 A |
| IC revision | D |
Description
The Micrel MIC2208 is a high efficiency PWM buck (step-down) regulator that provides up to 3A of output current. The MIC2208 operates at 1MHz and has external compensation that allows a closed loop bandwidth of over 100kHz.
The low on-resistance internal p-channel MOSFET of the MIC2208 allows efficiencies over 94%, reduces external component count and eliminates the need for an expensive current sense resistor.
The MIC2208 operates from 2.7V to 5.5V input and the output can be adjusted down to 1V. The devices can operate with a maximum duty cycle of 100% for use in low-dropout conditions.
The MIC2208 is available in the exposed pad 12-pin 3mm x 3mm MLF® package with a junction operating range from -40°C to +125°C.
Features
- 2.7V to 5.5V supply voltage
- 1MHz PWM mode
- Output current to 3A
90% efficiency
- Adjustable output voltage option down to 1V
- Ultra-fast transient response
- External Compensation
- Stable with a wide range of output capacitance
- Fully integrated 5A MOSFET switch
- Micropower shutdown
- Thermal shutdown and current limit protection
- Pb-free 12-pin 3mm x 3mm MLF® package
- 40°C to +125°C junction temperature range
Typical applications
- Video cards
- 5V or 3.3V Point of load conversion
- Telecom/networking equipment
- Set top boxes
- Storage equipment
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | RDC max.(mΩ) | fres(MHz) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 1 µH, 7.9 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance1 µH | Performance Rated Current7.9 A | DC Resistance12 mΩ | Self Resonant Frequency115 MHz | Size7332 | VersionRobust |