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Overview
| Topology | Buck Converter |
| Input voltage | 2.7-5.5 V |
| Switching frequency | 800-1200 kHz |
| Output 1 | 1.5 V / 4 A |
| Output 2 | 1.2 V / 4 A |
| Output 3 | 1 V / 4 A |
| IC revision | 004 |
Description
BD9137MUV is ROHM’s high efficiency step-down switching regulator designed to produce a voltage as low as 0.8V from a supply voltage of 5.5V/3.3V. It offers high efficiency by using pulse skip control technology and synchronous switches, and provides fast transient response to sudden load changes by implementing current mode control.
Features
- Fast Transient Response because of Current Mode PWM Control System.
- High Efficiency for All Load Ranges because of Synchronous Switches (Nch/Nch FET) and SLLMTM (Simple Light Load Mode)
- Soft-Start Function
- Thermal Shutdown and UVLO Functions
- Short-Circuit Protection with Time Delay Function
- Shutdown Function
Typical applications
- Power Supply for LSI including DSP, Microcomputer and ASIC
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) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-LHMI SMT Power Inductor, 2.2 µH, 6.2 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance2.2 µH | Performance Rated Current6.2 A | Saturation Current @ 10%7 A | Saturation Current @ 30%14 A | DC Resistance35 mΩ | Self Resonant Frequency42 MHz | MountSMT |