TPS63030 High Efficient Single Inductor Buck-Boost Converter with 1-A Switches | TI.com

TPS63030 (ACTIVE)

High Efficient Single Inductor Buck-Boost Converter with 1-A Switches

 

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Description

The TPS6303x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, or a one-cell Li-ion or Li-polymer battery. Output currents can go as high as 600 mA while using a single-cell Li-ion or Li-polymer battery, and discharge it down to 2.5 V or lower. The buck-boost converter is based on a fixed frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters power-save mode to maintain high efficiency over a wide load current range. The power-save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 1000 mA. 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 TPS6303x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 10-pin VSON package measuring 2.5 mm × 2.5 mm (DSK).

Features

  • Input Voltage Range: 1.8 V to 5.5 V
  • Fixed and Adjustable Output Voltage Options from
    1.2 V to 5.5 V
  • Up to 96% Efficiency
  • 800-mA Output Current at 3.3 V in Step-Down
    Mode (VIN = 3.6 V to 5.5 V)
  • Up to 500-mA Output Current at 3.3 V in Boost
    Mode (VIN > 2.4 V)
  • Automatic Transition Between Step-Down and
    Boost Mode
  • Device Quiescent Current less than 50 µA
  • Power-Save Mode for Improved Efficiency at Low
    Output Power
  • Forced Fixed Frequency Operation and
    Synchronization Possible
  • Load Disconnect During Shutdown
  • Overtemperature Protection
  • Available in a Small 2.5-mm × 2.5-mm 10-Pin
    VSON Package (QFN)

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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
TPS63030 TPS63000 TPS63000-Q1 TPS63010 TPS63020 TPS63020-Q1 TPS630250 TPS63036 TPS63050 TPS63070 TPS63802
Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost     Buck-Boost
Buck/Boost    
1.8     1.8     1.8     2     1.8     1.8     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     5.5     16     5.5    
1.2     1.2     1.2     1.2     1.2     1.2     2.3     1.2     2.5     2.5     1.8    
5.5     5.5     5.5     5.5     5.5     5.5     3.6     5.5     5.5     9     5    
1     1.8     1.8     2.2     4     4     4.5     1     1     3.6     4.5    
100     100     100     100     100     100     100     100     100     100     100    
2200     1250     1250     2200     2200     2200     2500     2200     2500     2100     2500    
2600     1500     1500     2400     2600     2600     2500     2600     2500     2800     2500    
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Synchronous Rectification
UVLO Fixed    
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
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
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification
UVLO Fixed    
Enable
Frequency Synchronization
Light Load Efficiency
Load Disconnect
Power Good
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Load Disconnect
Output Discharge
Synchronous Rectification
UVLO Fixed    
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    
0.025     0.04     0.04     0.04     0.05     0.05     0.035     0.025     0.045     0.05     0.011    
0.5     0.8