LM5085MM

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LM5085MM

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仕様

属性

概要

Description

The LM5085MM is a buck switching regulator IC from Texas Instruments, designed for wide input voltage (4.5V to 75V) applications. It integrates a high-side N-channel MOSFET driver, enabling efficient step-down (buck) DC-DC conversion with adjustable output voltage.
Key features:
- Peak current-mode control for fast transient response.
- Adjustable switching frequency (50kHz–1MHz) for flexibility in design.
- Low shutdown current (<3µA) for power-saving modes.
- Thermal shutdown & cycle-by-cycle current limiting for protection.
Typical applications include industrial, automotive, and telecom power supplies. The MM (VSSOP-8) package makes it suitable for space-constrained designs.
For detailed specs, refer to the datasheet or TI’s product page.

Equivalent

The LM5085MM is a step-down switching regulator. Equivalent alternatives include:
- LM2675 (Similar specs, lower current)
- LM2596 (Widely used, fixed/output versions)
- TPS5430 (Higher efficiency, TI alternative)
- LT1370 (Analog Devices equivalent)
- MP2307 (Monolithic Power Systems alternative)
Check datasheets for exact compatibility in voltage, current, and pinout.

Pinout

The LM5085MM is a 10-pin (VSSOP-10) step-down switching regulator IC.
Key Functions:
1. Input Voltage (VIN): Wide range (4.5V to 75V).
2. Output Voltage: Adjustable via external resistors.
3. Switching Frequency: Adjustable (up to 1MHz).
4. Control Pins: Enable (EN), feedback (FB), and compensation (COMP).
5. Power Pins: BOOT (bootstrap), SW (switch node), and GND.
It integrates a high-side MOSFET driver and is designed for buck converter applications, offering high efficiency and thermal protection.

Package

The LM5085MM is available in a VSSOP-8 (Very Thin Shrink Small Outline Package) package. This compact, surface-mount package is designed for space-constrained applications, offering good thermal performance and ease of PCB assembly. The "MM" suffix indicates the specific package variant.