TPS53315 12-A Step-Down Regulator with Integrated Switcher | TI.com

TPS53315 (ACTIVE)

12-A Step-Down Regulator with Integrated Switcher

 

Description

TPS53315 is a D-CAP™ mode, 12-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and small package power systems.

This device features single-rail input support, one 19-mΩ and one 7-mΩ integrated MOSFET, accurate 1%, 0.6 V Reference, and integrated boost switch. A sample of competitive features include: greater than 96% maximum efficiency, 3 V to 15 V wide input voltage range, very low external component count, D-CAP™ mode control for super fast transient, selectable auto-skip and PWM operation, internal soft-start control, adjustable frequency, and no need for compensation.

The conversion input voltage ranges from 3 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

The TPS53315 is available in a 5 mm × 7 mm 40-pin, VQFN package and is specified from –40°C to 85°C.

Features

  • Conversion Input Voltage Range: 3 V to 15 V
  • VDD Input Voltage Range: 4.5 V to 25 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • 5-V LDO Output
  • Integrated Power MOSFETs with 12-A Continuous
    Output Current
  • <10-µA Shut Down Current
  • Auto-Skip Eco-mode™ for Light-Load Efficiency
  • D-CAP™ Mode with Fast Transient Response
  • Selectable Switching Frequency from 250 kHz to
    1 MHz with an External Resistor
  • Built-in 1%, 0.6-V Reference
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable
    Internal Voltage Servo Soft-Start
  • Pre-Charged Start-up Capability
  • Integrated Boost Switch
  • Adjustable Overcurrent Limit Via External Resistor
  • Overvoltage/Undervoltage, UVLO and Over-
    Temperature Protection
  • Support All Ceramic Output Capacitors
  • Open Drain Power Good Indication
  • 40-pin VQFN Package with Thermal Pad

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WEBENCH® Designer TPS53315

  Min   Max Range
Vin  V 4.5 to 15.0V
Vout  V 0.6 to 5.5V
Iout  A ≤ 12A
Ambient Temp  °C -40 to 150°C

Parametrics

Compare all products in Buck converters (integrated switch) Email Download to Excel
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)
TPS53315 Order now 3     15     0.6     5.5     12     1     250     1000     0.32     Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
D-CAP     90     -40 to 85     Catalog     VQFN | 40     Converter     40VQFN: 35 mm2: 5 x 7 (VQFN | 40)    
TPS53310 Order now 2.9     6     0.6     4.2     3     1     1100     1100     0.32     Enable
Light Load Efficiency
Output Discharge
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Voltage Mode     99     -40 to 85     Catalog     VQFN | 16     Converter     16VQFN: 9 mm2: 3 x 3 (VQFN | 16)    
TPS53311 Order now 2.9     6     0.6     4.2     3     1     1100     1100     0.32     Enable
Light Load Efficiency
Output Discharge
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Voltage Mode     99     -40 to 85     Catalog     VQFN | 16     Converter     16VQFN: 9 mm2: 3 x 3 (VQFN | 16)    
TPS53314 Order now 3     15     0.6     5.5     6     1     250     1000     0.32     Adjustable Current Limit
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
D-CAP     90     -40 to 85     Catalog     VQFN | 40     Converter     40VQFN: 35 mm2: 5 x 7 (VQFN | 40)    
TPS53321 Order now 2.9     6     0.6     4.2     5     1     1100     1100     0.32     Enable
Frequency Synchronization
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Voltage Mode     99     -40 to 85     Catalog     VQFN | 16     Converter