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TI LM34927MRX/NOPB product image
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TI LM34927MRX/NOPBRoHS

Manufacturer
TI
MPN
LM34927MRX/NOPB
LCSC Part #
C2071501
Packaging
SO-PowerPAD-8
Customer #
Key Attributes
Integrated secondary-side bias regulator for isolated DC/DC converters
Datasheetpdf iconTI LM34927MRX/NOPB
In-Stock: 62
62 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.8761$ 2.88
10+$ 2.4342$ 24.34
30+$ 2.1579$ 64.74
100+$ 1.8736$ 187.36
500+$ 1.7452$ 872.60
1,000+$ 1.69$ 1690.00
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-PowerPAD-8
Operating Temperature-40℃~+125℃@(TA)
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 Current600mA
Output Voltage-
Quiescent Current1.75mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LM34927 regulator integrates all the features necessary to implement a low-cost, high-efficiency isolated bias regulator. This high-voltage regulator incorporates two 100V N-channel MOSFET switches — a high-side buck switch and a low-side synchronous switch. The constant on-time (COT) control scheme employed by the LM34927 eliminates loop compensation while delivering excellent transient response. The regulator's on-time is inversely proportional to the input voltage, a characteristic that keeps the switching 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 LM34927 is available in WSON-8 and SO PowerPAD-8 plastic packages.

Features

AI Translation
  • 7.5V to 100V wide input voltage range
  • Integrated 600mA 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 supply
  • Isolated automotive and industrial electronic components