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TPS62403 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. TPS62403
Description  2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
Download  39 Pages
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPS62403 Datasheet(HTML) 1 Page - Texas Instruments

 
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FEATURES
DESCRIPTION
APPLICATIONS
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
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
TPS62400
,, TPS62401
TPS62403
SLVS681C – JUNE 2006 – REVISED DECEMBER 2006
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.
• EasyScale™ Optional One-Pin Serial Interface
for Dynamic Output Voltage Adjustment
With an input voltage range of 2.5V to 6V the
TPS62400 is ideal to power portable applications like
• TPS62401, TPS62403 Fixed Output Voltage
smart phones, PDAs and other portable equipment.
Options
With the EasyScale™ serial interface the output
• Power Save Mode at Light Load Currents
voltages can be modified during operation. The fixed
• 180° Out of Phase Operation
output voltage versions TPS62401 and TPS62403
• Output Voltage Accuracy in PWM Mode ±1%
support one pin controlled simple Dynamic Voltage
• Typical 32-µA Quiescent Current for both
Scaling for low power processors.
Converters
The TPS6240x operates at 2.25MHz fixed switching
• 100% Duty Cycle for Lowest Dropout
frequency
and
enters
the
power
save
mode
operation at light load currents to maintain high
• One Pin Simple Dynamic Voltage Scaling
efficiency over the entire load current range. For low
• Available in a 10-Pin QFN (3×3mm)
noise applications the devices can be forced into
fixed
frequency
PWM
mode
by
pulling
the
MODE/DATA pin high. In the shutdown mode, the
• Cell Phones, Smart-phones
current consumption is reduced to 1.2
µA, typical.
The devices allow the use of small inductors and
• PDAs, Pocket PCs
capacitors to achieve a small solution size.
• OMAP™ and Low Power DSP Supply
• Portable Media Players
The TPS62400 is available in a 10-pin leadless
package (3
×3mm QFN)
• Digital Radio
• Digital Cameras
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, 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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