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TI LM25017MRX/NOPB product image
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TI LM25017MRX/NOPBRoHS

Manufacturer
TI
MPN
LM25017MRX/NOPB
LCSC Part #
C2071439
Packaging
SO-8
Customer #
Key Attributes
48V, 650mA constant on-time synchronous step-down/Fly-Buck regulator
Datasheetpdf iconTI LM25017MRX/NOPB
In-Stock: 188
188 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 3.1168$ 3.12
10+$ 2.6676$ 26.68
30+$ 2.4007$ 72.02
100+$ 2.1305$ 213.05
500+$ 2.0052$ 1002.60
1,000+$ 1.9498$ 1949.80
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingSO-8
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching1MHz
FunctionStep-down type
Number of Outputs1
FeaturesOvercurrent Protection;Adjustable soft-start;Built-in LDO regulator
Output TypeAdjustable
TopologyBuck
Operating Voltage7.5V~48V
Switch tube (built-in/external)Built-in
Output Current650mA
Output Voltage1.225V~40V
Quiescent Current1.75mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LM25017 is a 48V, 650mA synchronous buck regulator with integrated high-side and low-side MOSFETs. The COT control scheme eliminates loop compensation, delivers excellent transient response, and enables ultra-high step-down ratios. On-time is inversely proportional to input voltage, keeping frequency nearly constant across the full input voltage range. A high-voltage startup regulator provides bias power for internal IC operation and the integrated gate drivers.

A peak current limit circuit protects against overload conditions. The UVLO circuit supports independent programming of input undervoltage threshold and hysteresis. Additional protection features include thermal shutdown and VCC UVLO.

The LM25017 is available in WSON-8 and HSOP-8 plastic packages.

Features

AI Translation
  • 7.5V to 48V wide input range
  • Integrated 650mA high-side and low-side switches
  • No Schottky diode required
  • Constant on-time control
  • No loop compensation required
  • Ultra-fast transient response
  • Near-constant operating frequency
  • Intelligent peak current limiting
  • Adjustable output voltage (1.225V reference voltage)
  • 2% feedback reference voltage accuracy
  • Frequency adjustable up to 1MHz
  • Adjustable UVLO
  • Remote shutdown
  • Thermal shutdown
  • Custom design with LM25017 using WEBENCH PowerDesigner

Applications

AI Translation
  • Industrial Equipment
  • Smart Meters
  • Telecommunications Systems
  • Isolated Bias Supply (Fly-Buck™)