All trademarks are the property of their respective owners.
DescriptionThe TPS61256A device provides a power supply solution for battery-powered portableapplications. Intended for low-power applications, the TPS61256A supports up to 800-mA load currentfrom a battery discharged as low as 2.7V and allows the use of low cost chip inductor andcapacitors.
With a wide input voltage range of 2.5V to 5.5V, the device supports applications poweredby Li-Ion batteries with extended voltage range and delivers a fixed 5.0V output voltage.
The TPS61256A operates at a regulated 3.5-MHz switching frequency and enters power-savemode operation at light load currents to maintain high efficiency over the entire load currentrange. The PFM mode extends the battery life by reducing the quiescent current to 36μA (typ) duringlight load operation. Input current in shutdown mode is less than 5μA, which maximizes batterylife.
The TPS61256A offers a very small solution size due to minimum amount of externalcomponents. It allows the use of small inductors and input capacitors to achieve a small solutionsize. During shutdown, the load is completely disconnected from the battery.
These devices have limited built-in ESD protection. The leads should be shorted togetheror the device placed in conductive foam during storage or handling to prevent electrostatic damageto the MOS gates.
Feature
- 93% Efficiency at 3.5MHz Operation
- 36μA Quiescent Current
- Wide VIN RangeFrom 2.5V to 5.5V
- IOUT ≥1000mA atVOUT = 5.0V, VIN ≥3.3V
- ±2% TotalDC Voltage Accuracy
- Light-Load PFM Mode
- True LoadDisconnect During Shutdown
- Thermal Shutdown and Overload Protection
- Only Three Surface-Mount External Components Required
- TotalSolution Size <35mm2
- 9-Pin NanoFreeTM (CSP) Packaging
All trademarks are the property of their respective owners.
DescriptionThe TPS61256A device provides a power supply solution for battery-powered portableapplications. Intended for low-power applications, the TPS61256A supports up to 800-mA load currentfrom a battery discharged as low as 2.7V and allows the use of low cost chip inductor andcapacitors.
With a wide input voltage range of 2.5V to 5.5V, the device supports applications poweredby Li-Ion batteries with extended voltage range and delivers a fixed 5.0V output voltage.
The TPS61256A operates at a regulated 3.5-MHz switching frequency and enters power-savemode operation at light load currents to maintain high efficiency over the entire load currentrange. The PFM mode extends the battery life by reducing the quiescent current to 36μA (typ) duringlight load operation. Input current in shutdown mode is less than 5μA, which maximizes batterylife.
The TPS61256A offers a very small solution size due to minimum amount of externalcomponents. It allows the use of small inductors and input capacitors to achieve a small solutionsize. During shutdown, the load is completely disconnected from the battery.
These devices have limited built-in ESD protection. The leads should be shorted togetheror the device placed in conductive foam during storage or handling to prevent electrostatic damageto the MOS gates.
