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AC/DC & DC/DC converters (integrated FET)

TPS61256C

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3,5 MHz, 5 V, 900 mA, Lastaufwärtswandler in 1,2 mm x 1,3 mm-WCSP, mit Durchlassmodus

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TPS61256C

AKTIV
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Produktdetails

Vin (min) (V) 2.5 Vin (max) (V) 4.85 Topology Boost Type Converter Switching frequency (min) (kHz) 3500 Switching frequency (max) (kHz) 3500 Features Enable, Light Load Efficiency, Synchronous Rectification Vout (min) (V) 5 Vout (max) (V) 5.4 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002
Vin (min) (V) 2.5 Vin (max) (V) 4.85 Topology Boost Type Converter Switching frequency (min) (kHz) 3500 Switching frequency (max) (kHz) 3500 Features Enable, Light Load Efficiency, Synchronous Rectification Vout (min) (V) 5 Vout (max) (V) 5.4 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00002
DSBGA (YFF) 9 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001
  • 93% Efficiency at 3.5-MHz Operation
  • 37-µA Quiescent Current in Normal Operation
  • Wide VIN Range From 2.3 V to 5.5 V
  • Support VIN ≥ VOUT Operation
  • ±2% Total DC Voltage Accuracy
  • Light-Load PFM Mode
  • Pass-through Mode by Pulling EN Low
  • Thermal Shutdown and Overload Protection
  • Only Three Surface-Mount External Components Required
  • Total Solution Size < 25 mm2
  • 9-Pin NanoFree™ (CSP) Packaging
  • 93% Efficiency at 3.5-MHz Operation
  • 37-µA Quiescent Current in Normal Operation
  • Wide VIN Range From 2.3 V to 5.5 V
  • Support VIN ≥ VOUT Operation
  • ±2% Total DC Voltage Accuracy
  • Light-Load PFM Mode
  • Pass-through Mode by Pulling EN Low
  • Thermal Shutdown and Overload Protection
  • Only Three Surface-Mount External Components Required
  • Total Solution Size < 25 mm2
  • 9-Pin NanoFree™ (CSP) Packaging

The TPS61256xC device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS61256xC supports up to 800-mA load current from a battery discharged as low as 2.65 V and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.

The TPS61256xC operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation.

In addition, the TPS61256xC device can also support the pass-through mode by pulling EN to low. In this mode, the output voltage follows the input voltage with a voltage drop by the resistance of the inductor and high-side FET.

The TPS61256xC offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

The TPS61256xC device provides a power supply solution for battery-powered portable applications. Intended for low-power applications, the TPS61256xC supports up to 800-mA load current from a battery discharged as low as 2.65 V and allows the use of low cost chip inductor and capacitors.

With a wide input voltage range of 2.3 V to 5.5 V, the device supports applications powered by Li-Ion batteries with extended voltage range. Different fixed voltage output versions are available from 3.15 V to 5.0 V.

The TPS61256xC operates at a regulated 3.5-MHz switching frequency and enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range. The PFM mode extends the battery life by reducing the quiescent current to 37 µA (typ) during light load operation.

In addition, the TPS61256xC device can also support the pass-through mode by pulling EN to low. In this mode, the output voltage follows the input voltage with a voltage drop by the resistance of the inductor and high-side FET.

The TPS61256xC offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size.

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Technische Dokumentation

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* Data sheet TPS61256xC 3.5-MHz High Efficiency Step-Up Converter In Chip Scale Pac datasheet (Rev. A) 22 Jun 2017

Design und Entwicklung

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Evaluierungsplatine

TPS61256EVM-711 — Evaluierungsmodul für TPS61256, winziger Aufwärtswandler mit Eingangsstrombegrenzung und Bypas

The TPS6125XEVM-711 enables test and evaluation of the Texas Instruments' TPS61254 and TPS61256 (TPS6125x) devices, a series of 3.5-MHz, up to 5.5-V, step-up dc-dc converters. This user's guide includes EVM specifications, the schematic diagram, bill of materials, and board layout. The TPS6125x (...)

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