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TI LMR33640DDDARRoHS

Manufacturer
TI
MPN
LMR33640DDDAR
LCSC Part #
C1852154
Packaging
SOIC-8-EP
Customer #
Key Attributes
3.8V to 36V, 4A synchronous step-down converter
Datasheetpdf iconTI LMR33640DDDAR
In-Stock: 2,082
2,082 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 1.2807$ 1.28
10+$ 1.0785$ 10.79
30+$ 0.967$ 29.01
100+$ 0.8409$ 84.09
500+$ 0.7843$ 392.15
1,000+$ 0.7584$ 758.40
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
PackagingSOIC-8-EP
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching1MHz
FunctionStep-down type
Number of Outputs1
FeaturesCycle-by-cycle current limiting;Hiccup current limiting;Light load efficient mode;Operating status indication;Built-in LDO regulator;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage3.8V~36V
Switch tube (built-in/external)Built-in
Output Current4A
Output Voltage1V~24V
Quiescent Current24uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LMR33640 SIMPLE SWITCHER regulator is an easy-to-use synchronous step-down DC/DC converter that delivers excellent efficiency for demanding industrial applications. The LMR33640 can drive up to 4A of load current from input voltages up to 36V. The LMR33640 provides high light-load efficiency and output accuracy. Features such as power good flag and precision enable facilitate flexible, easy-to-use solutions across a wide range of applications. The LMR33640 automatically folds back switching frequency at light loads to improve efficiency. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection. Through integration and internal compensation, the device reduces external component count and offers a pin arrangement designed for simple PCB layout. The feature set is designed to simplify implementation across a variety of end products. The LMR33640 is pin-to-pin compatible with the LMR33610, LMR33620, LMR33630 (36V, 1A/2A/3A) and LMR36510 (65V, 1A) and LMR36520 (65V, 2A), completing a scalable SIMPLE SWITCHER power family. This reduces cost and minimizes the effort associated with board layout modifications. The LMR33640 is available in an 8-pin HSOIC package.

Features

AI Translation
  • Functional Safety documentation available to support functional safety system design, dedicated to demanding industrial applications
  • Input voltage range: 3.8V to 36V
  • Output voltage range: 1V to 24V
  • Peak current mode control
  • Junction temperature range: -40°C to +125°C
  • Easy-to-use SOIC package
  • Ideal for scalable industrial power supplies
  • Pin-compatible with: LMR33610, LMR33620, and LMR33630 (36V, 1A, 2A, or 3A), LMR36510 and LMR36520 (65V, 1A or 2A)
  • 400kHz and 1MHz switching frequency
  • Integrated compensation helps reduce solution size, cost, and design complexity

Applications

AI Translation
  • Motor drive systems: drones, AC inverters, variable frequency drives, servo systems
  • Factory and building automation systems: PLC, HMI, HVAC systems, elevator main control boards
  • Wide input voltage DC/DC power supplies