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TI LM27342MY/NOPB product image
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TI LM27342MY/NOPBRoHS

Manufacturer
TI
MPN
LM27342MY/NOPB
LCSC Part #
C2071254
Packaging
MSOP-10-EP
Customer #
Key Attributes
2-MHz, 1.5-A or 2-A, Wide Input Range, Step-Down, DC-DC Regulator With Frequency Synchronization
Datasheetpdf iconTI LM27342MY/NOPB
In-Stock: 10
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QtyUnit PriceTotal Amount
1+$ 5.1723$ 5.17
10+$ 5.0519$ 50.52
30+$ 4.9705$ 149.12
100+$ 4.8892$ 488.92
Standard Packaging1000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingMSOP-10-EP
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching2MHz;1MHz~2.35MHz
FunctionStep-down type
Number of Outputs1
FeaturesFrequency synchronization;Cycle-by-cycle current limiting;Overcurrent Protection;Built-in LDO regulator
Output TypeAdjustable
TopologyBuck
Operating Voltage3V~20V
Switch tube (built-in/external)Built-in
Output Current2A
Output Voltage1V~18V
Quiescent Current2.4mA
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Introduction

AI Translation

The LM2734x and LM2734x-Q1 regulators are monolithic, high-frequency, PWM step-down DC-DC converters in 10-pin WSON and 10-pin MSOPPowerPAD packages. They contain all the active functions to provide local DC-DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components, the LM2734x and LM2734x-Q1 are easy to use. The ability to drive 1.5-A or 2-A loads respectively, with an internal 150-mΩ NMOS switch results in the best power density available. The control circuitry allows for on-times as low as 65 ns, thus supporting exceptionally high frequency conversion. Switching frequency is internally set to 2 MHz and synchronizable from 1 to 2.35 MHz, which allows the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 90% are easy to achieve. External shutdown is included, which features an ultra-low shutdown current of 70 nA. The LM2734x and LM2734x-Q1 use peak current-mode control and internal compensation to provide highperformance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.

Features

AI Translation
  • Space-Saving, 3 mm×3 mm 10-Pin WSON and MSOP-PowerPAD Packages
  • Wide Input Voltage Range: 3 V to 20 V
  • Wide Output Voltage Range: 1 V to 18 V
  • LM27341 Delivers 1.5-A Maximum Output Current
  • LM27342 Delivers 2-A Maximum Output Current
  • High Switching Frequency: 2 MHz
  • Frequency Synchronization: 1 MHz < fSW < 2.35 MHz
  • 150-mΩ NMOS Switch With Internal Bootstrap Supply
  • 70-nA Shutdown Current
  • Internal Voltage Reference Accuracy of 1%
  • Peak Current-Mode, PWM Operation
  • Thermal Shutdown
  • LM27341-Q1 and LM27342-Q1 are AEC-Q100 Grade 1 Qualified and Manufactured on an Automotive Grade Flow

Applications

AI Translation
  • Local 12-V to Vcore Step-Down Converters
  • Radio Power Supply
  • Core Power in HDDs
  • Set-Top Boxes
  • Automotive
  • USB Powered Devices
  • DSL Modems