TPS53310  2.9V to 6V, 3-A Step-Down Converter with Integrated MOSFETs | TI.com

TPS53310 (ACTIVE)

 2.9V to 6V, 3-A Step-Down Converter with Integrated MOSFETs

 

Description

The TPS53310 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200 mm2 of PCB area. Due to the low RDS(on) and TI's proprietary SmoothPWM™ Skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 3-A solution.

The TPS53310 features a 1.1-MHz switching frequency, SKIP mode operation support, pre-bias startup, internal softstart, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage and overtemperature protections and all ceramic output capacitor support. It supports supply voltage from
2.9 V to 3.5 V and conversion voltage from 2.9 V to
6 V, and output voltage is adjustable from 0.6 V to
0.84 V × VIN.

The TPS53310 is available in the 3 mm × 3 mm,
16-pin VQFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

Features

  • >95% Maximum Efficiency
  • Continuous 3-A Output Current
  • Hiccup Overcurrent Protection
  • Supports All MLCC Output Capacitor
  • SmoothPWM Auto-Skip Eco-mode for Light-Load Efficiency
  • Voltage Mode Control
  • Supports Master-Slave Interleaved Operation
  • Synchronization up to ±20% of Nominal Frequency
  • Conversion Voltage Range Between 2.9 V and 6 V
  • Soft-Stop Output Discharge During Disable
  • Adjustable Output Voltage Ranging Between 0.6 V and 0.84 V × VIN
  • Undervoltage, Overvoltage and Overtemperature Protection
  • Small 3 mm × 3 mm, 16-Pin VQFN Package
  • Open-Drain Power Good Indication
  • Internal Boot Strap Switch
  • Low RDS(on), 24 mΩ with 3.3-V Input and 19-mΩ with 5-V Input
  • Supports Pre-bias Start Up

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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)
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)    
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)    
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     16VQFN: 9 mm2: 3 x 3 (VQFN | 16)