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TPS62402 Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza TPS62402
Descripción Electrónicos  2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS62402 Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
V
:1.575V
400mA
out1
SW1
FB1
SW2
ADJ2
DEF_1
10 F
m
VIN2.5V – 6V
VIN
EN_1
EN_2
MODE/
DATA
TPS62401
GND
2.2 H
m
10 F
m
2.2 H
m
V
:1.8V
600mA
out2
10 F
m
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1000
IOUTmA
VIN =3.6V
MODE/DATA =0
VOUT1=1.575V
VOUT2 =1.8V
TPS62400
,, TPS62401
TPS62402, TPS62403
SLVS681D – JUNE 2006 – REVISED FEBRUARY 2007
2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
• High Efficiency—Up to 95%
The TPS6240x device series are synchronous dual
step-down DC-DC converters optimized for battery
• V
IN Range From 2.5 V to 6 V
powered portable applications. They provide two
• 2.25 MHz Fixed Frequency Operation
independent output voltage rails powered by 1-cell
• Output Current 400 mA and 600 mA
Li-Ion or 3-cell NiMH/NiCD batteries. The devices are
• Adjustable Output Voltage From 0.6V to V
IN
also suitable to operate from a standard 3.3V or 5V
voltage rail.
• Pin Selectable Output Voltage Supports
Simple Dynamic Voltage Scaling
With an input voltage range of 2.5V to 6V the
TPS62400 is ideal to power portable applications like
• EasyScale™ Optional One-Pin Serial Interface
smart phones, PDAs and other portable equipment.
• Power Save Mode at Light Load Currents
With the EasyScale™ serial interface the output
• 180° Out of Phase Operation
voltages can be modified during operation. The fixed
• Output Voltage Accuracy in PWM Mode ±1%
output
voltage
versions
TPS62401,
TPS62402,
• Typical 32-µA Quiescent Current for Both
TPS62403
support
one
pin
controlled
simple
Converters
Dynamic Voltage Scaling for low power processors.
• 100% Duty Cycle for Lowest Dropout
The TPS6240x operates at 2.25MHz fixed switching
frequency
and
enters
the
power
save
mode
• Available in a 10-Pin QFN (3×3mm)
operation at light load currents to maintain high
efficiency over the entire load current range. For low
noise applications the devices can be forced into
• Cell Phones, Smart-phones
fixed
frequency
PWM
mode
by
pulling
the
• PDAs, Pocket PCs
MODE/DATA pin high. In the shutdown mode, the
• OMAP™ and Low Power DSP Supply
current consumption is reduced to 1.2
µA, typical.
The devices allow the use of small inductors and
• Portable Media Players
capacitors to achieve a small solution size.
• Digital Radio
• Digital Cameras
The TPS62400 is available in a 10-pin leadless
package (3
×3mm QFN)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EasyScale, OMAP, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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