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Overview
| Topology | Buck Converter |
| Input voltage | 7-16 V |
| Switching frequency | 200-1000 kHz |
| Output 1 | 1.2 V / 20 A |
| IC revision | 1.0 |
Description
The MIC4520/MIC4521 is an IntelliMOS power stage family capable of delivering up to 20A in a compact 4 x 6mm TQFN package. The MIC4521 is a two phase power stage (includes MOSFET drivers and power MOSFETs) featuring integrated current and temperature sensing. The MIC4521 can be interfaced with a single phase controller (such as Micrel’s MIC2111) to build a complete high current and high performance power converter. The MIC4520 is a single phase power stage that can operate with a single phase or multiphase controller. The MIC4520/MIC4521 utilizes Micrel’s high performance FETZilla™ DMOS technology to achieve high efficiency (over 90% peak).
Features
- 7V to 16V input voltage range
- 3.3V logic tri-state PWM signal 560kHz to 1.2MHz switching frequency range
- 90% efficiency for a 12V to 2.5V/20A conversion
- Integrated temperature sensing (10mV/°C)
- 2-phase power stage operates from 1-phase controller (MIC4521)
- Mode selection pin for CCM/DCM operation
- Single tri-state PWM
- Integrated MOSFETs, drivers, and thermal monitors
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | Material | LR(µH) | fres(MHz) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-HCC SMT High Current Cube Inductor, 1 µH, 34 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCC SMT High Current Cube Inductor | Inductance1 µH | Performance Rated Current34 A | Saturation Current @ 10%30.6 A | Saturation Current @ 30%33.5 A | DC Resistance2.5 mΩ | MaterialFerrite | Rated Inductance0.9 µH | Self Resonant Frequency96 MHz |