TPS561208 4.5V to 17V Input, 1A Output, Synchronous Step-Down Converter | TI.com

TPS561208 (ACTIVE) 4.5V to 17V Input, 1A Output, Synchronous Step-Down Converter

 

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Description

The TPS561201 and TPS561208 are simple, easy-to-use, 1-A synchronous step-down converters in SOT-23 package.

The devices are 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-CAP2 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.

The TPS561201 operates in pulse skip mode, which maintains high efficiency during light load operation. The TPS561201 and TPS561208 are available in a 6-pin 1.6 × 2.9 (mm) SOT (DDC) package and specified from –40°C to 125°C of junction temperature.

Features

  • TPS561201 and TPS561208 1-A Converter Integrated 140-mΩ and 84-mΩ FETs
  • D-CAP2™ Mode Control With Fast Transient Response
  • Input Voltage Range: 4.5 V to 17 V
  • Output Voltage Range: 0.76 V to 7 V
  • Pulse-Skip Mode (TPS561201) or Continuous Current Mode (TPS561208)
  • 580-kHz Switching Frequency
  • Low Shutdown Current Less than 10 µA
  • 2% Feedback Voltage Accuracy (25°C)
  • Startup from Pre-Biased Output Voltage
  • Cycle-by-Cycle Overcurrent Limit
  • Hiccup-Mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft-Start: 1.0 ms
  • Create a Custom Design Using the TPS56120x With the WEBENCH® Power Designer

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WEBENCH® Designer TPS561208

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.77 to 7V
Iout  A ≤ 1A
Ambient Temp  °C -40 to 150°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)
TPS561208 Order now 4.5     17     0.76     7     1     1     580     580     0.4     Enable
Forced PWM
Synchronous Rectification
Soft Start Fixed    
D-CAP2     80     -40 to 85     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 5 mm2: 1.6 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
Soft Start Adjustable    
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
Soft Start Adjustable    
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)    
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)    
TPS563240 Order now 4.5     17     0.6     7     2           0.26     Light Load Efficiency
Soft Start Fixed    
    -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 5 mm2: 1.6 x 2.9 (SOT-23-THIN | 6)    
TPS565201 Order now 4.5     17