TPS563249 17 V, 3 A, Constant 1.4 MHz Synchronous Step-Down Voltage Regulator | TI.com

TPS563249 (PREVIEW)

17 V, 3 A, Constant 1.4 MHz Synchronous Step-Down Voltage Regulator

 

Sample Availability

Preproduction samples are available (XTPS563249DDCR). Order Now

Description

The TPS563249 is a simple, easy-to-use, 3 A synchronous step-down converter in SOT-23 package.

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

This switch mode power supply (SMPS) device 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.

TPS563249 operates in Forced Continuous Conduction Mode (FCCM), which maintains fixed 1.4 MHz switching frequency during light load operation and eliminates system interference. The TPS563249 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
  • 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
  • Forced Continuous Conduction Mode
  • Constant 1.4-MHz Switching Frequency
  • Low Shutdown Current Less than 10 µA
  • 1% Feedback Voltage Accuracy (25ºC)
  • Startup from Pre-Biased Output Voltage
  • Cycle-by-Cycle Overcurrent Limit
  • Hiccup-mode Overcurrent Protection
  • Non-Latch UVP and TSD Protections
  • Fixed Soft Start: 1.8 ms

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Parametrics Compare all products in Buck converters (integrated switch)

 
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
TPS563249 TPS561201 TPS561208 TPS562201 TPS562208 TPS563201 TPS563208 TPS563231 TPS564201 TPS564208 TPS565201
4.5     4.5     4.5     4.5     4.5     4.5     4.5     4.5     4.5     4.5     4.5    
17     17     17     17     17     17     17     17     17     17     17    
0.6     0.76     0.76     0.76     0.76     0.76     0.76     0.6     0.76     0.76     0.76    
7     7     7     7     7     7     7     7     7     7     7    
3     1     1     2     2     3     3     3     4     4     5    
1     1     1     1     1     1     1     1     1     1     1    
1400     580     580     580     580     580     580     600     500     500     400    
1400     580     580     580     580     580     580     600     600     600     600    
0.26     0.4     0.4     0.4     0.4     0.4     0.4     0.22     0.4     0.4     0.4    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Over Current Protection
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Synchronous Rectification    
Enable
Light Load Efficiency
Over Current Protection
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Synchronous Rectification    
Enable
Forced Pulse Width Modulation (FPWM) Mode
Synchronous Rectification    
Enable
Light Load Efficiency
Synchronous Rectification    
D-CAP3     D-CAP2     D-CAP2     D-CAP2     D-CAP2     D-CAP2     D-CAP2     D-CAP3     D-CAP2     D-CAP2     D-CAP2    
  80     80     80     80