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TPS62321DRCR Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS62321DRCR
Description  500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER IN CHIP SCALE PACKAGING
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS62321DRCR Datasheet(HTML) 1 Page - Texas Instruments

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QFN-10
CSP-8
www.ti.com
FEATURES
DESCRIPTION
APPLICATIONS
VIN
SW
TPS62303YZD
ADJ
C1
C2
VOUT
EN
MODE/SYNC
FB
A2
B2
C1
B1
D1
C2
D2
GND
A1
4.7
µF
VI
2.7 V . . 6 V
4.7
µF
VO
1.8 V/500 mA
L1
1
µH
0
10
20
30
40
50
60
70
80
90
100
0.1
1
10
100
1 k
VI = 3.6 V,
VO = 1.8 V
L = 2.2
µH,
CO = 4.7 µF
IO − Load Current − mA
TPS62300, TPS62301, TPS62302
TPS62303, TPS62305, TPS62311
TPS62313, TPS62320, TPS62321
SLVS528B – JULY 2004 – REVISED JUNE 2005
500-mA, 3-MHz SYNCHRONOUS STEP-DOWN CONVERTER
IN CHIP SCALE PACKAGING
Up to 93% Efficiency at 3-MHz Operation
The TPS623xx device is a high-frequency synchron-
Up to 500-mA Output Current at VI = 2.7 V
ous
step-down
dc-dc
converter
optimized
for
3-MHz Fixed Frequency Operation
battery-powered portable applications. Intended for
Best in Class Load and Line Transient
low-power applications, the TPS623xx supports up to
500-mA load current and allows the use of tiny, low
Complete 1-mm Component Profile Solution
cost chip inductor and capacitors.
-0.5% / +1.3% PWM DC Voltage Accuracy Over
The device is ideal for mobile phones and similar
Temperature
portable applications powered by a single-cell Li-Ion
35-ns Minimum On-Time
battery or by 3-cell NiMH/NiCd batteries. With an
Power-Save Mode Operation at Light Load
output voltage range from 5.4 V down to 0.6 V, the
Currents
device supports the low-voltage TMS320™ DSP
family, processors in smart-phones, PDAs as well as
Fixed and Adjustable Output Voltage
notebooks, and handheld computers.
Only 86-
µA Quiescent Current
The TPS62300 operates at 3-MHz fixed switching
100% Duty Cycle for Lowest Dropout
frequency and enters the power-save mode operation
Synchronizable On the Fly to External
at light load currents to maintain high efficiency over
Clock Signal
the entire load current range. For low noise appli-
Integrated Active Power-Down Sequencing
cations, the device can be forced into fixed frequency
(TPS6232x only)
PWM mode by pulling the MODE/SYNC pin high. The
device can also be synchronized to an external clock
Available in a 10-Pin QFN (3 x 3 mm) and
signal in the range of 3 MHz. In the shutdown mode,
Highly Reliable 8-Pin NanoFree™ and
the current consumption is reduced to less than 1
µA.
NanoStar™ (CSP) Packaging
The TPS623xx is available in a 10-pin leadless
package (3 x 3 mm QFN) and an 8-pin chip-scale
package (CSP).
Cell Phones, Smart-Phones
WLAN and Bluetooth™ Applications
Micro DC-DC Converter Modules
PDAs, Pocket PCs
USB-Based DSL Modems
Digital Cameras
Figure 1. Smallest Solution Size Application
(Fixed Output Voltage)
Figure 2. Efficiency vs Load Current
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.
NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
PowerPAD is a trademark of Texas Instsruments.
UNLESS OTHERWISE NOTED this document contains PRO-
Copyright © 2004–2005, Texas Instruments Incorporated
DUCTION DATA information current as of publication date. Prod-
ucts conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily
include testing of all parameters.


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