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TPS62238DRYT Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS62238DRYT
Descripción Electrónicos  2-MHz and 3-MHz Ultra Small Step-Down Converter in 1 x 1.5 USON Package
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62238DRYT Datasheet(HTML) 1 Page - Texas Instruments

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V
IN
GND
V
OUT
C2
L1
Totalarea
islessthan
12mm²
1.8 V
VOUT
2.05 V to 6 V
VIN
2.2 F
m
CIN
L
1/2.2 H
m
C
4.7 F
OUT
m
TPS62231
VIN
EN
MODE
SW
FB
GND
Copyright © 2016, Texas Instruments Incorporated
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Design
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.
TPS62230, TPS62231, TPS62232, TPS62233, TPS62234, TPS62235, TPS62236
TPS62237, TPS62238, TPS62239, TPS622310, TPS622311, TPS622312
TPS622313, TPS622314, TPS622315, TPS622316, TPS622317, TPS622318, TPS622319
SLVS941G – APRIL 2009 – REVISED AUGUST 2016
TPS6223xx 2-MHz and 3-MHz Ultra Small Step-Down Converter in 1 x 1.5 USON Package
1
1 Features
1
2 MHz / 3 MHz Switching Frequency
Up to 94% Efficiency
Output Peak Current up to 500 mA
Operating Junction Temperature of –40°C to
125°C
High PSRR (up to 90 dB)
Small External Output Filter Components 1 μH
and 4.7 μF
VIN range from 2.05 V to 6 V
Optimized Power-Save Mode for Low Output
Ripple Voltage
Forced PWM Mode Operation
Typ. 22-μA Quiescent Current
100% Duty Cycle for Lowest Dropout
Small 1-mm × 1.5-mm × 0.6-mm USON Package
12-mm2 Minimum Solution Size
Supports 0.6-mm Maximum Solution Height
2 Applications
LDO Replacement
Portable Audio, Portable Media
Low Power Wireless
Low Power DSP Core Supply
Digital Cameras
3 Description
The TPS6223x device family is a high-frequency,
synchronous,
step-down
DC
DC
converter
optimized for battery powered portable applications. It
supports up to 500-mA output current and allows the
use
of
tiny
and
low-cost
chip
inductors
and
capacitors.
With a wide input voltage range of 2.05 V to 6 V, the
device supports applications powered by Li-Ion
batteries with extended voltage range. The minimum
input voltage of 2.05 V allows as well the operation
from Li-primary or two alkaline batteries. Different
fixed output voltage versions are available from 1.0 V
to 3.3 V.
The TPS6223x series features switch frequency up to
3.8 MHz. At medium to heavy loads, the converter
operates in pulse width modulation (PWM) mode and
automatically enters power-save mode operation at
light load currents to maintain high efficiency over the
entire load current range.
Because of its excellent power supply rejection ratio
(PSRR) and AC load regulation performance, the
device is also suitable to replace linear regulators to
obtain better power conversion efficiency.
The power-save mode in TPS6223x reduces the
quiescent current consumption down to 22 μA during
light load operation. It is optimized to achieve very
low output voltage ripple even with small external
component and features excellent AC load regulation.
For very noise-sensitive applications, the device can
be forced to PWM mode operation over the entire
load range by pulling the MODE pin high. In the
shutdown mode, the current consumption is reduced
to less than 1 μA. The TPS6223x operates over a
junction temperature range of –40°C to 125°C. It is
available in a 1 mm × 1.5 mm × 0.6 mm 6-pin SON
package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6223xx
USON (6)
1.45 mm x 1.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
Small PCB Layout Size


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