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LM5017SDX/NOPB

Name: LM5017SDX/NOPB
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 600MA 8LLP

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製造商。部分 #LM5017SDX/NOPB
包 WSON (NGU)-8
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Function	Step-Down
OutputConfiguration	Positive
Topology	Buck
OutputType	Adjustable
NumberofOutputs	1
Voltage-Input(Min)	7.5V
Voltage-Input(Max)	100V
Voltage-Output(Min/Fixed)	1.225V
Voltage-Output(Max)	90V
Current-Output	600mA
Frequency-Switching	Adj to 1MHz
SynchronousRectifier	Yes
OperatingTemperature	-40°C ~ 125°C (TJ)
MountingType	Surface Mount
Package/Case	8-WDFN Exposed Pad

概述

Description

LM5017SDX/NOPB is a TI high-voltage buck regulator with an integrated N-channel switch. It is designed to convert higher input voltages to a lower output with minimal external parts.
Key points
- Input range and output: typically 4.5–60 V input, up to about 600 mA output (non-synchronous buck).
- Control and efficiency: fixed-frequency, current-mode PWM with enable/soft-start; optimized for high efficiency in compact power designs.
- External components: requires an inductor, a fast Schottky catch diode (external), input/output capacitors, and a feedback divider to set Vout.
- Protection: undervoltage lockout, overcurrent/short-circuit protection, thermal shutdown.
- Packaging: available in TI’s SDX package with Pb-free (NOPB) finish.
Applications
- Automotive, industrial, telecom and general DC-DC conversion where a higher Vin must be stepped down to 5–12 V or similar rails.
For exact pinout, electrical characteristics, and design guidance, consult the LM5017SDX/NOPB datasheet and TI design tools.

Features

Key features of LM5017SDX/NOPB (TI Simple Switcher buck regulator):
- Wide input range: up to ~60 V
- Fixed switching frequency: around 600 kHz
- Current-mode control with cycle-by-cycle current limit
- External feedback for adjustable output
- Built-in protections: undervoltage lockout, overcurrent, and thermal shutdown
- Enable pin for shutdown control
- Soft-start to limit inrush and improve startup
- Requires external inductor and catch diode (non-synchronous) or can be used with a synchronous setup
- Pb-free, RoHS-compliant package (SDX) with NOPB designation
Applications: power supplies for automotive/industrial environments, where a robust, wide-input buck regulator is needed.

Package

The LM5017SDX/NOPB comes in an 8‑pin Small Outline IC package (SOIC‑8), Pb‑free/RoHS compliant.

Pinout

8 pins. It’s a high‑voltage buck regulator with an integrated high‑side switch. Main functions/pins: VIN (input up to ~60 V), GND, EN/UVLO (enable), FB (output feedback), SW (switch node to inductor and diode), BST/BOOT (bootstrap for high‑side gate drive), RT/SS (frequency setting and soft‑start).

Manufacturer

Texas Instruments (TI). TI is an American multinational corporation that designs and manufactures semiconductors and integrated circuits, one of the world’s largest semiconductor companies.

Application

LM5017SDX/NOPB is a high-voltage, 600-mA buck regulator with integrated MOSFET. Typical applications include:
- Automotive power rails (12/24V)
- Industrial DC-DC converters from 24–72V
- Telecom and data-center power supplies
- Distributed/polled power architectures and point-of-load regulators
- Battery/backup charger front-ends requiring a compact fixed-frequency buck with protection features.