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TPS61256CYFFT Datasheet(PDF) 1 Page - Texas Instruments

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No. de Pieza. TPS61256CYFFT
Descripción  3.5-MHz High Efficiency Step-Up Converter In Chip Scale Packaging
Descarga  29 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS61256CYFFT Datasheet(HTML) 1 Page - Texas Instruments

 
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- Output
Current
- mA
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V - Input
Voltage
- V
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V = 5.0 V
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TPS61256C
SLVSDQ1 – FEBRUARY 2017
TPS61256xC 3.5-MHz High Efficiency Step-Up Converter In Chip Scale Packaging
1
1 Features
1
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
2 Applications
NFC PA Supply
Cell Phones, Smart Phones
Mono and Stereo APA Applications
USB Charging Ports
3 Description
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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61256xC
DSBGA (9)
1.206 mm × 1.306 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Efficiency vs Load Current


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