TPS51367 (ACTIVE)

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

Description

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.

Features

  • 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
    Capacitor
  • 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 Evaluate all products in Step-Down (Buck) Converter

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Regulated Outputs (#) 1
Vin (Min) (V) 3
Vin (Max) (V) 22
Vout (Min) (V) 0.6
Vout (Max) (V) 2
Iout (Max) (A) 12
Iout2 (Max) (A) -
Vout2 (Min) (V) -
Vout2 (Max) (V) -
Topology Buck
  • Boost
  • Buck
  • Buck-Boost
  • Inverting Buck-Boost
Switching Frequency (Max) (kHz) 800
Switch Current Limit (Typ) (A) 16
Iq (Typ) (mA) 0.1
Duty Cycle (Max) (%) 87
Soft Start Adjustable
  • Adjustable
  • Fixed
  • None
Compensation Not Needed
  • External
  • Internal
  • Not Needed
Special Features Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
  • Adjustable Current Limit
  • Adjustable UVLO
  • Dynamic Voltage Scaling
  • Enable
  • Frequency Synchronization
  • Light Load Efficiency
  • Phase Interleaving
  • Power Good
  • Synchronous Rectification
  • Tracking
Control Mode D-CAP2
  • COT with emulated ripple
  • Constant on-time (COT)
  • Current Mode
  • D-CAP
  • D-CAP+
  • D-CAP2
  • D-CAP3
  • Voltage Mode
Preset Vout (V) -
Vref Accuracy (Typ) (%) 1
Rating Catalog
  • Automotive
  • Catalog
  • HiRel Enhanced Product
  • High Temp
  • Military
  • Space
Operating Temperature Range (C) -10 to 85 °C to °C
Approx. Price (US$) 2.70 | 1ku
Package Group VQFN-CLIP
  • CFP
  • DDPAK/TO-263
  • DSBGA
  • DSLGA
  • HTSSOP
  • LQFN-CLIP
  • LSON-CLIP
  • MSOP-PowerPAD
  • PDIP
  • QFN
  • SO PowerPAD
  • SOIC
  • SON
  • SOT
  • SOT-23
  • TO-220
  • TO-263
  • TSSOP
  • USON
  • VQFN
  • VQFN-CLIP
  • VSON
  • VSSOP
  • WQFN
  • WSON
  • XCEPT
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