TPS562231 4.5-V to 17-V input, 2-A output, synchronous step-down converter | TI.com

TPS562231 (ACTIVE) 4.5-V to 17-V input, 2-A output, synchronous step-down converter

 

Description

The TPS562231 is a simple, easy-to-use, 2-A synchronous step-down converter in SOT563 package.

The device is optimized to operate with minimum external component counts, and also optimized to achieve low standby current.

These switch mode power supply (SMPS) devices employ D-CAP3 mode control providing a fast transient response and supporting both low-equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors with no external compensation components.

During light load operation, TPS562231 operates in pulse skip mode (PSM), which maintains high efficiency. The TPS562231 is available in a 6-pin 1.6-mm × 1.6-mm SOT563 (DRL) package, and specified from a –40°C to 125°C junction temperature.

Features

  • 2-A converter integrated 95-mΩ and 55-mΩ FETs
  • D-CAP3™ Mode Control with fast transient response
  • Input voltage range: 4.5 V to 17 V
  • Output voltage range: 0.6 V to 7 V
  • Pulse skip mode
  • 850-kHz switching frequency
  • Low shutdown current less than 2 µA (typical)
  • 2% feedback voltage accuracy (25ºC)
  • Startup from pre-biased output voltage
  • Cycle-by-cycle over current limit
  • Hiccup-mode over current protection
  • Non-latch UVP and TSD protections
  • 6-pin SOT563 package
  • Precision enable
  • Pin-to-pin compatible with TPS563231

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WEBENCH® Designer TPS562231

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.6 to 7V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 85°C

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)
TPS562231 Order now 4.5     17     0.6     7       1     850     850     0.22     Light Load Efficiency
Over Current Protection
Soft Start Fixed
UVLO Fixed    
D-CAP3       -40 to 125     Catalog     SOT-5X3 | 6       6SOT-5X3: 2 mm2: 1.2 x 1.6 (SOT-5X3 | 6)    
TPS561208 Order now 4.5     17     0.76     7     1     1     580     580     0.4     Enable
Forced PWM
Synchronous Rectification    
D-CAP2     80     -40 to 85     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 6)    
TPS562210A Order now 4.5     17     0.76     7     2     1     650     650     0.23     Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
D-CAP2     80     -40 to 85     Catalog     SOT-23-THIN | 8     Converter     8SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 8)    
TPS562219A Order now 4.5     17     0.76     5.5     2     1     650     650     0.65     Enable
Light Load Efficiency
Power Good
Synchronous Rectification    
D-CAP2     80     -40 to 85     Catalog     SOT-23-THIN | 8     Converter     8SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 8)    
TPS563240 Order now 4.5     17     0.6     7     2           0.26     Light Load Efficiency         -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 6)    
TPS565201 Order now 4.5     17