22-V Input, 12-A Integrated FET Converter with Ultra-Low Quiescent


The TPS51367 is a high-voltage input, synchronous converter with integrated FET, based on DCAP-2 control topology, which enables fast transient response and supports both POSCAP and all MLCC output capacitors. TI proprietary FET technology combined with TI leading-edge package technology provides the highest density solution for single-output power rail such as VCCIO and VDDQ for DDR notebook memory, or any point-of-load (POL) in wide application.

The key feature of the TPS51367 is its ULQ™ Mode to enable low-bias current (100 µA in low power mode, enabled by LP#). This feature is extremely beneficial for long battery life in system standby mode.

The feature set includes switching frequency of 800 kHz. Programmable soft-start time with an external capacitor. auto skip, pre-bias startup, integrated bootstrap switch, power good, enable and a full suite of fault protection schemes, including OCL, UVP, OVP, 5-V UVLO and thermal shutdown.

It is packaged in 3.5 mm × 4.5 mm, 0.4-mm pitch, 28-pin QFN (RVE), and specified from –10°C to 85°C.


  • Input Voltage Range: 3 V to 22 V
  • Output Voltage Range: 0.6 V to 2 V
  • 12-A Integrated FET Converter
  • Fewest External Components
  • ULQ™-100 Mode of Operation to Enable
    Long Battery Life During System Standby
  • Soft-Start Time Programmable by External
  • Switching Frequency: 400 kHz and 800 kHz
  • D-CAP2™ Architecture to Enable POSCAP
    and All MLCC Output Capacitor Usage
  • Integrated and Temperature Compensated Low-Side
    On-Resistance Sensing for Accurate OCL Protection
  • Powergood Output
    OCL, OVP, UVP and UVLO Protections
  • Thermal Shutdown (non-latch)
  • Output Discharge Function
  • Integrated Boost MOSFET Switch
  • 28-Pin, 3.5-mm × 4.5-mm, RVE, QFN Package
    with 0.4-mm Pitch and 1-mm Height

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Parametrics Compare all products in Step-Down (Buck) Converter

Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Switching Frequency (Max) (kHz)
Switch Current Limit (Typ) (A)
Iq (Typ) (mA)
Duty Cycle (Max) (%)
Soft Start
Special Features
Control Mode
Vref Accuracy (Typ) (%)
Operating Temperature Range (C)
Approx. Price (US$)
TPS51367 TPS51362 TPS51363
1     1     1    
3     3     3    
22     22     22    
0.6     0.6     0.6    
2     2     2    
12     10     10    
Buck     Buck     Buck    
800     800     800    
16     12     12    
0.1     0.1     0.56    
87     87     87    
Adjustable     Adjustable     Adjustable    
Not Needed     Not Needed     Not Needed    
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
D-CAP2     D-CAP2     D-CAP2    
1     1     1    
Catalog     Catalog     Catalog    
-10 to 85     -10 to 85     -10 to 85    
2.70 | 1ku     2.30 | 1ku     2.10 | 1ku    

Related end equipment

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  • Memory Rails (DDR VDDQ)

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