LMR33620-Q1 3.8-V to 36-V, 2-A synchronous step-down voltage converter | TI.com

LMR33620-Q1
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3.8-V to 36-V, 2-A synchronous step-down voltage converter

 

Description

The LMR33620-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged applications.The LMR33620-Q1 drives up to 2 A of load current from an input of up to 36 V. The LMR33620-Q1 provides high light load efficiency and output accuracy in a very small solution size. Features such as a power-good flag and precision enable provide both flexible and easy-to-use solutions for a wide range of applications. The LMR33620-Q1 automatically folds back frequency at light load to improve efficiency. Integration eliminates most external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LMR33620-Q1 is available in a 12-pin 3 mm × 2 mm VQFN package with wettable flanks.

Features

  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Configured for rugged automotive applications
    • Input voltage range: 3.8 V to 36 V
    • Output voltage range: 1 V to 24 V
    • Output current: 2 A
    • 75-mΩ/50-mΩ RDS-ON power MOSFETs
    • Peak-current-mode control
    • Short minimum on-time of 68 ns
    • Frequency: 400 kHz, 1.4 MHz, 2.1 MHz
    • Low EMI and low switching noise
    • Integrated compensation network
  • High-efficiency solution
    • Peak efficiency > 95%
    • Low shutdown quiescent current of 5 µA
    • Low operating quiescent current of 25 µA
  • Flexible system interface
    • Power-good flag and precision enable
  • Create a custom design using the LMR33620-Q1 with the WEBENCH® Power Designer

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Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
LMR33620-Q1 Order now 3.8     36     1     34     2     1     400     2100     0.024     Enable
Light Load Efficiency
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Wettable Flanks Package    
Current Mode     98     -40 to 125     Automotive     VQFN-HR | 12     Converter     12VQFN-HR: 6 mm2: 3 x 2 (VQFN-HR | 12)    
LMR33630-Q1 Order now 3.8     36     1     34     3     1     400     2100     0.024     Enable
Light Load Efficiency
Over Current Protection
Power Good
Synchronous Rectification
Wettable Flanks Package    
Current Mode     98     -40 to 125     Automotive     VQFN-HR | 12     Converter     12VQFN-HR: 6 mm2: 3 x 2 (VQFN-HR | 12)