TPS63050 TPS6305x Single Inductor Buck-Boost with 1-A Switches and Adjustable Soft Start | TI.com

TPS63050 (ACTIVE)

TPS6305x Single Inductor Buck-Boost with 1-A Switches and Adjustable Soft Start

 

Recommended alternative parts

  • TPS63030  -  Looking for extended input voltage range (down to 1.8V)? Try the TPS63030

Description

The TPS6305x family of devices is a high efficiency, low quiescent-current buck-boost converter, suitable for applications where the input voltage is higher or lower than the output.

Continuous output current can go as high as 500 mA in boost mode and as high as 1 A in buck mode. The maximum average current in the switches is limited to a typical value of 1 A. The TPS6305x family of devices regulate the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage, ensuring seamless transition between modes.

The buck-boost converter is based on a fixed-frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain the highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range.

The PFM/PWM pin allows the user to select between automatic-PFM/PWM mode operation and forced-PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 12-pin DSBGA and in a 12-pin HotRod package.

Features

  • Real Buck or Boost with Seamless Transition
    Between Buck and Boost Mode
  • 2.5 V to 5.5 V Input Voltage Range
  • 0.5-A Continuous Output Current: VIN ≥ 2.5 V,
    VOUT = 3.3 V
  • Adjustable and Fixed Output Voltage Version
  • Efficiency > 90% in Boost Mode and > 95% in
    Buck Mode
  • 2.5-MHz Typical Switching Frequency
  • Adjustable Average Input Current Limit
  • Adjustable Soft-Start Time
  • Device Quiescent Current < 60 µA
  • Power Save Mode
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Small 1.6mm × 1.2mm, 12-pin WCSP and
    2.5mm × 2.5mm 12-pin HotRod package

View more

Parametrics Compare all products in Buck-boost, inverting & split-rail converters (integrated switch)

 
Topology
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Duty cycle (Max) (%)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Features
Iq (Typ) (mA)
Iout (Max) (A)
Rating
Type
Operating temperature range (C)
Package Group
TPS63050 TPS63000 TPS63010 TPS63024 TPS630250 TPS63027 TPS63030 TPS63051 TPS63070 TPS63802
Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost
Buck/Boost    
2.5     1.8     2     2.3     2.3     2.3     1.8     2.5     2     1.3    
5.5     5.5     5.5     5.5     5.5     5.5     5.5     5.5     16     5.5    
2.5     1.2     1.2     2.5     2.3     1     1.2     3.3     2.5     1.8    
5.5     5.5     5.5     3.6     3.6     5.5     5.5     3.3     9     5    
1     1.8     2.2     3     4.5     4.5     1     1     3.6     4.5    
100     100     100     100     100     100     100     100     100     100    
2500     1250     2200     2500     2500     2500     2200     2500     2100     2500    
2500     1500     2400     2500     2500     2500     2600     2500     2800     2500    
Adjustable Current Limit
Enable
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification
UVLO Fixed    
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Synchronous Rectification
UVLO Fixed    
Dynamic Voltage Scaling
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Output Discharge    
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Synchronous Rectification
UVLO Fixed    
Adjustable Current Limit
Enable
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification
UVLO Fixed    
Dynamic Voltage Scaling
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Output Discharge
Power Good
Synchronous Rectification
UVLO Fixed
Voltage Margining    
Enable
Light Load Efficiency
Load Disconnect
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
0.045     0.04     0.04     0.035     0.035     0.035     0.025     0.045     0.05     0.011    
0.5     0.8     0.8     1.5     2     2     0.5     0.5     2     2    
Catalog     Catalog     Catalog     Catalog