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TI LM34925MR/NOPB product image
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TI LM34925MR/NOPBRoHS

Manufacturer
TI
MPN
LM34925MR/NOPB
LCSC Part #
C2877985
Packaging
SO-8
Customer #
Key Attributes
Integrated secondary-side bias regulator for isolated DC-DC converters
Datasheetpdf iconTI LM34925MR/NOPB
In-Stock: 41
41 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.9963$ 3.00
10+$ 2.5451$ 25.45
30+$ 2.2756$ 68.27
100+$ 2.0045$ 200.45
500+$ 1.8785$ 939.25
1,000+$ 1.8227$ 1822.70
Standard Packaging95/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
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Adjustable soft-start;Built-in LDO regulator;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage7.5V~100V
Switch tube (built-in/external)Built-in
Output Current100mA
Output Voltage1.225V~100V
Quiescent Current1.75mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging95
Sales UnitPiece

Introduction

AI Translation

The LM34925 regulator integrates all the features needed to implement a low-cost, high-efficiency isolated bias regulator. This high-voltage regulator contains two 100V N-channel MOSFET switches: a high-side buck switch and a low-side synchronous switch. The constant on-time (COT) control scheme eliminates the need for loop compensation and delivers excellent transient response. The on-time of this regulator is inversely proportional to the input voltage, a characteristic that keeps the operating frequency relatively constant. An integrated sensing circuit performs intelligent peak current limiting. Additional features include a programmable input undervoltage comparator to inhibit operation under low-voltage conditions. Protection features include thermal shutdown and VCC undervoltage lockout (UVLO). The LM34925 device is available in an 8-pin WSON and an 8-pin SO PowerPAD plastic package.

Features

AI Translation
  • Wide input voltage range: 7.5V to 100V
  • Integrated 100mA 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
  • Package: 8-pin WSON, 8-pin SO PowerPAD

Applications

AI Translation
  • Isolated telecom bias power supply
  • Isolated automotive and industrial electronic components