TPS563240 17-V, 3-A, 1.4-MHz synchronous step-down voltage regulator | TI.com

TPS563240 (ACTIVE)

17-V, 3-A, 1.4-MHz synchronous step-down voltage regulator

 

Description

The TPS563240 is a simple, easy-to-use, 3-A synchronous step-down regulator in SOT-23 package. The peak transient output current can be 3.5A.

The devices are optimized to operate with minimum external component counts and also optimized to achieve low standby current.

This switching regulator employs 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.

TPS563240 operates in pulse skip mode, which maintains high efficiency during light load operation. With Out-of-Audio™ (OOA) operation implemented, The TPS563240 maintain Fsw over 25kHz under light load condition. The TPS563240 is available in a 6-pin 1.6-mm × 2.9-mm SOT (DDC) package, and specified from a –40°C to 125°C junction temperature.

Features

  • 3-A Converter Integrated 70-mΩ and 30-mΩ FETs, support 3.5A transient
  • 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 with Out-of-Audio™ (OOA) operation, Light Load Operation with Fs over 25kHz
  • 1.4-MHz Switching Frequency
  • Low Shutdown Current Less than 10 µA
  • 1% Feedback Voltage Accuracy (25 ºC)
  • Startup from Pre-Biased Output Voltage
  • Cycle-by-Cycle Overcurrent Limit
  • Hiccup-mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft Start: 1.7 ms

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WEBENCH® Designer TPS563240

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.6 to 7V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°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)
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)    
TPS561201 Order now 4.5     17     0.76     7     1     1     580     580     0.4     Enable
Light Load Efficiency
Synchronous Rectification    
D-CAP2     80     -40 to 125     Catalog     SOT-23-THIN | 6     Converter     6SOT-23-THIN: 8 mm2: 2.8 x 2.9 (SOT-23-THIN | 6)    
TPS562201 Order now 4.5     17     0.76     7     2     1     580     580     0.4     Enable
Light Load Efficiency
Synchronous Rectification    
D-CAP2     80     -40 to 125     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)    
TPS562231 Samples not available 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)    
TPS563231 Samples not available 4.5     17     0.6     7     3