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TPS62400 Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS62400
Description  2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
Download  43 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62400 Datasheet(HTML) 1 Page - Texas Instruments

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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, TPS62404
www.ti.com
SLVS681E – JUNE 2006 – REVISED APRIL 2010
2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
Check for Samples: TPS62400, TPS62401, TPS62402, TPS62403, TPS62404
1
FEATURES
DESCRIPTION
2
High Efficiency—Up to 95%
VIN Range From 2.5 V to 6 V
The TPS6240x device series are synchronous dual
step-down DC-DC converters optimized for battery
2.25 MHz Fixed Frequency Operation
powered portable applications. They provide two
Output Current 400 mA and 600 mA
independent output voltage rails powered by 1-cell
Adjustable Output Voltage From 0.6V to VIN
Li-Ion or 3-cell NiMH/NiCD batteries. The devices are
also suitable to operate from a standard 3.3V or 5V
Pin Selectable Output Voltage Supports
voltage rail.
Simple Dynamic Voltage Scaling
With an input voltage range of 2.5V to 6V the
EasyScale™ Optional One-Pin Serial Interface
TPS62400 is ideal to power portable applications like
Power Save Mode at Light Load Currents
smart phones, PDAs and other portable equipment.
180° Out of Phase Operation
With the EasyScale™ serial interface the output
Output Voltage Accuracy in PWM Mode ±1%
voltages can be modified during operation. The fixed
Typical 32-mA Quiescent Current for Both
output
voltage
versions
TPS62401,
TPS62402,
Converters
TPS62403, and TPS62404 support one pin controlled
simple Dynamic Voltage Scaling for low power
100% Duty Cycle for Lowest Dropout
processors.
Available in a 10-Pin QFN (3×3mm)
The TPS6240x operates at 2.25MHz fixed switching
frequency and enters the power save mode operation
APPLICATIONS
at light load currents to maintain high efficiency over
Cell Phones, Smart-phones
the
entire
load
current
range.
For
low
noise
PDAs, Pocket PCs
applications the devices can be forced into fixed
OMAP™ and Low Power DSP Supply
frequency PWM mode by pulling the MODE/DATA
Portable Media Players
pin
high.
In
the
shutdown
mode,
the
current
consumption is reduced to 1.2mA, typical. The
Digital Radio
devices allow the use of small inductors and
Digital Cameras
capacitors to achieve a small solution size.
The TPS62400 is available in a 10-pin leadless
package (3×3mm QFN)
1
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.
2
EasyScale, OMAP, PowerPAD are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2010, 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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