Texas Instruments

LM73605RNPR

Voltage Regulators - DC DC Switching Regulators

Manufacturer
MPN
LM73605RNPR
Package / Case
WQFN-30-EP
Key Attributes
3.5-V to 36-V, 5-A Synchronous Step-Down Voltage Converter

Technical Specifications

TypeDescription
Output TypeAdjustable
Output Voltage17.6 V
Output Current5 A
FunctionStep-down type
Working Voltage V19.75 V
Switching Freq Hz2.2 MHz
Channels1
TypeDescription
Iq A1.5e-05
Switch tube (built-in/external)Built-in
Operating Temp-40°C ~ +125°C @(TJ)
FeaturesAdjustable current limiting;Cycle-by-cycle current limiting;Hiccup current limiting;Adjustable soft-start;Output voltage tracking;Frequency synchronization;Light load efficient mode;Operating status indication;Overcurrent Protection
TopologyBuck
Package / CaseWQFN-30-EP

Product Introduction

The LM73605/LM73606 family of devices are easy-to-use synchronous step-down DC-DC converters capable of driving up to 5 A (LM73605) or 6 A (LM73606) of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605/LM73606 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization to an external clock, FPWM option, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load and optional external bias improve efficiency over the entire load range. The family requires few external components and has a pinout designed for simple PCB layout with optimal EMI and thermal performance. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limiting, and hiccup short-circuit protection. The LM73605 and LM73606 devices are pin-to-pin compatible for easy current scaling.

Features

  • Synchronous Rectification
  • Wettable Flanks QFN Package (WQFN)
  • Low Quiescent Current: 0.8 μA in Shutdown (typical), 15 μA in Active Mode with No Load (typical)
  • Wide Voltage Conversion Range: tON_MIN = 60 ns (typical), tOFF_MIN = 70 ns (typical)
  • Low MOSFET ON-Resistance: RDS_ON_HS = 53 mΩ (typical), RDS_ON_lS = 31 mΩ (typical)
  • External Bias Input to Improve Efficiency
  • Pin-Selectable Auto Mode or Forced PWM Operation
  • Adjustable Frequency Range: 350 kHz to 2.2 MHz
  • Synchronizable to External Clock
  • Internal Compensation
  • Power-Good Flag
  • Precision Enable to Program System UVLO
  • Flexible Soft-Start Features: Start-up into Pre-Biased Load, Fixed or Adjustable Soft-Start Time
  • Output Voltage Tracking
  • Cycle-by-Cycle Current Limiting
  • Short-Circuit Protection With Hiccup Mode
  • Thermal Shutdown Protection
  • Create a Custom Design With the WEBENCH Power Designer using LM73605 or LM73606

Applications

  • - Industrial Distributed Power Applications - Telecommunications Systems - General-Purpose Wide VIN Regulation

Datasheet

📄 Open Download

Alternative Parts

Common LM73605RNPR alternatives overseas buyers search for:

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542399000
USHTS8542390001
TARIC8542399000
TypeDetails
CAHTS8542390000
BRHTS85423999
INHTS85423900
MXHTS8542.39.99

Sourcing Information

Sourcing LM73605RNPR from China? SZ Procure helps international buyers navigate the Shenzhen electronics market and locate suitable supplier options for specific component requirements.

Our Shenzhen sourcing team can help with supplier sourcing, availability checks and quotation comparison for LM73605RNPR, then coordinate procurement, supplier screening, inspection and international shipping based on what you need.

Need LM73605RNPR? Send us your required quantity and specifications for a sourcing check and quotation.