TPS61220 TPS61221 TPS61222 SLVS776 – JANUARY 2009 LOW INPUT VOLTAGE STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE

TPS61220
TPS61221
TPS61222
SLVS776 – JANUARY 2009
LOW INPUT VOLTAGE STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE

1FEATURES
• Up to 95% Efficiency at Typical Operating
Conditions
• 5.5 µ A Quiescent Current
• Startup Into Load at 0.7 V Input Voltage
• Operating Input Voltage from 0.7 V to 5.5 V
• Pass-Through Function during Shutdown
• Minimum Switching Current 200 mA
• Protections:
– Output Overvoltage
– Overtemperature
– Input Undervoltage Lockout

APPLICATIONS
• Adjustable Output Voltage from 1.8 V to 5.5 V
• Fixed Output Voltage Versions
• Small 6-pin SC-70 Package
• Battery Powered Applications
– 1 to 3 Cell Alkaline, NiCd or NiMH
– 1 cell Li-Ion or Li-Primary
• Solar or Fuel Cell Powered Applications
• Consumer and Portable Medical Products
• Personal Care Products
• White or Status LEDs
• Smartphones

DESCRIPTION
The TPS6122x family devices provide a power-supply solution for products powered by either a single-cell,
two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-Ion or Li-polymer battery. Possible output currents
depend on the input-to-output voltage ratio. The boost converter is based on a hysteretic controller topology
using synchronous rectification to obtain maximum efficiency at minimal quiescent currents. The output voltage of
the adjustable version can be programmed by an external resistor divider, or is set internally to a fixed output
voltage. The converter can be switched off by a featured enable pin. While being switched off, battery drain is
minimized. The device is offered in a 6-pin SC-70 package (DCK) measuring 2 mm x 2 mm to enable small
circuit layout size.

Click here to download Texas Instruments TI pdf datasheet TPS61220 TPS61221 TPS61222 SLVS776 – JANUARY 2009 LOW INPUT VOLTAGE STEP-UP CONVERTER IN 6 PIN SC-70 PACKAGE 

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