TPS62136 3-17V 4.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN | TI.com

TPS62136 (ACTIVE)

3-17V 4.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN

3-17V 4.0A Step-Down Converter with 1% accuracy and PFM/Forced-PWM in 2x3QFN - TPS62136
 

Description

The TPS62136 and TPS621361 are high efficiency and easy to use synchronous step-down DC-DC converters, based on the DCS-Control™ Topology. The devices wide input voltage range of 3-V to 17-V makes it suitable for multi-cell Li-Ion as well as 12-V intermediate supply rails. The devices provide 4-A continuous output current. The TPS62136 automatically enters Power Save Mode at light loads to maintain high efficiency across the whole load range. With that, the device is well suited for applications that require connected standby performance, like ultra low power computers. With the MODE pin set to low, the switching frequency of the device is adapted automatically based on the input and output voltage. This technique is called Automatic Efficiency Enhancement (AEE™) and maintains high conversion efficiency over the whole operation range. It provides a 1% output voltage accuracy in PWM mode and therefore enables the design of a power supply with high output voltage accuracy.

The device has a typical quiescent current of 18 µA. In shutdown mode the current is typically 1 µA and the output is actively discharged for TPS62136 while the output voltage discharge feature is disabled in TPS621361.

The TPS62136 is available as an adjustable version, packaged in a 3-mm x 2-mm VQFN package.

Features

  • Output Voltage Accuracy ± 1% (PWM mode)
  • Input Voltage Range: 3 V to 17 V
  • Quiescent Current 18 µA Typ
  • Output Voltage from 0.8 V to 12 V
  • Adjustable Soft-Start
  • Forced PWM or PWM/PFM operation
  • Typical switching frequency of 1 MHz in forced PWM
  • Precise ENABLE input allows
    • User-Defined Undervoltage Lockout
    • Exact Sequencing
  • 100% Duty Cycle Mode
  • Automatic Efficiency Enhancement AEE™
  • DCS-Control™ Topology
  • Available with Active Output Discharge
  • Optional HICCUP Overcurrent Protection
  • Power Good Output
  • Available in 3-mm x 2-mm VQFN Package

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Parametrics Compare all products in Buck Converter (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
TPS62136 TPS621361 TLV62569 TPS62085 TPS62088 TPS62090 TPS62130 TPS62135 TPS62140 TPS62147 TPS62148 TPS62180 TPS62480 TPS62801 TPS62802 TPS62806 TPS62823 TPS62825 TPS62826
3     3     2.5     2.5     2.4     2.5     3     3     3     3     3     4     2.4     1.8     1.8     1.8     2.4     2.4     2.4    
17     17     5.5     6     5.5     6     17     17     17     17     17     15     5.5     5.5     5.5     5.5     5.5     5.5     5.5    
0.8     0.8     0.6     0.8     0.6     0.8     0.9     0.8     0.9     0.8     0.8     0.9     0.6     0.8     1.8     0.4     0.6     0.6     0.6    
12     12     5.5     6     4     6     6     12     6.3     12     12     6     5.5     1.55     3.3     0.775     4     4     4    
4     4     2     3     3     3     3     4     2     2     2     6     6     1     1     0.6     3     2     3    
1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1     1    
1000     1000     1500     2400     4000     1400     1250     2500     1250     1250     1250     1000     2000     4000     4000     1500     2200     2200     2200