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LM5017SD/NOPB

Name: LM5017SD/NOPB
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 600MA 8WSON

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製造商。部分 #LM5017SD/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

LM5017SD/NOPB is a Texas Instruments buck (step-down) regulator with an integrated high‑side MOSFET. The “NOPB” suffix means RoHS-compliant, no-lead packaging, and “SD” indicates the package type. It’s designed for converting relatively high input voltages (typical automotive/industrial ranges) down to a lower rail using external components.
Key points:
- Fixed-frequency PWM with current‑mode control.
- External components: inductor, catch diode (non-synchronous), input/output capacitors, and a feedback divider to set the output.
- Protections: enable/disable, undervoltage lockout, overcurrent (current limit), thermal shutdown.
- Output is adjustable via external resistor network; suitable for a variety of rails in automotive/industrial DC-DC designs.
- Used in compact, efficient power supplies where a single high‑voltage input must be stepped down.
For exact electrical specs (input range, switching frequency, max output current, and recommended external components), consult the LM5017 datasheet and TI design resources.

Features

Here are the key features of the LM5017SD/NOPB:
- Wide input range: up to 60 V
- Integrated high-side switch: up to ~600 mA output capability
- Fixed switching frequency: typical 600 kHz
- Non-synchronous buck topology: requires external catch diode and inductor
- Adjustable output: external feedback divider
- Simple current‑mode control with short‑circuit protection
- Soft-start to limit inrush
- Enable (and/or UVLO) for low-power shutdown
- Protections: overcurrent/short-circuit, overvoltage, and thermal shutdown
- Robust, lead-free (NOPB) package variant (SD suffix)
- Suitable for automotive/industrial environments with wide Vin tolerance
Note: Always consult the datasheet for exact pinout, electrical specs, and recommended external components.

Package

LM5017SD/NOPB comes in an 8‑pin surface‑mount SOIC package (SOIC‑8). NOPB indicates RoHS Pb‑free.

Pinout

- Pin count: 8 pins (SOIC-8 package, LM5017SD/NOPB).
- Function: High-side switch buck regulator with an integrated MOSFET (non-synchronous). Converts a higher input voltage (up to about 42 V) to a lower output using an external inductor and Schottky diode. Output is set via the feedback (FB) network. Features include enable (EN/UVLO), frequency setting (RT), external compensation (COMP), and a bypass/ reference node (BYP) for stabilization. Output current is in the ~600 mA range depending on conditions.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits (ICs), plus related software and tools; one of the world’s largest semiconductor makers.

Application

LM5017SD/NOPB is a 60-V Simple Switcher buck regulator. Applications:
- Automotive and industrial power supplies (12–60 V input to 5/3.3/1.8 V rails)
- Point-of-load regulation for CPUs/ASICs/FPGA in telecom, data centers, and networking
- DC-DC buck stages in battery-powered devices
- Solar/renewable energy DC-DC conversion
- General compact, high-efficiency buck regulation in 60-V systems

Equivalent

Do you want cross-references to non‑TI parts or only TI equivalents? Also, please share your required specs (input voltage range, output voltage, output current, switching frequency) to identify exact substitutes.