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TPS62701YZF Fiches technique(PDF) 1 Page - Texas Instruments

No de pièce TPS62701YZF
Description  2 MHz 650 mA Step Down Converter for RF Power Amplifiers in Tiny 8-pin WCSP Package
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62701YZF Fiches technique(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
PVIN
AVIN
PGND
AGND
FB
VCON
EN
SW
V
2.5Vto6.0V
IN
3.3
H
m
4.7
F
m
10
F
m
V
=2.5xVCON
OUT
1.3Vto3.09V
TPS62700, TPS62701
www.ti.com................................................................................................................................................... SLVS784B – DECEMBER 2007 – REVISED JUNE 2008
2 MHz 650 mA Step Down Converter for RF Power Amplifiers in
Tiny 8-pin WCSP Package
• High-Efficiency Step-Down Converter
• Output Current up to 650 mA
The
TPS6270x
device
is
a
high-efficiency
synchronous step-down DC-DC converter optimized
• V
IN Range From 2.5 to 6.0 V
for RF power-amplifier (PA) applications. It provides
• 2.0-MHz Fixed-Frequency Operation
up to 650 mA of output current from a single Li-Ion
• Clock Dithering (TPS62701)
cell.
• Dynamic Voltage Control With External
The device converts input voltages from 2.5 to 6.0 V
Reference (1.3 V to 3.09 V)
down to an output voltage set by an external analog
reference voltage applied to the pin VCON. The
• Fast Output-Voltage Settling (1.3 V to 3.09 V in
output voltage follows the external reference by an
20
µs)
internal gain of 2.5 within the limits of 1.3 V to 3.09 V.
• Soft Start
This scheme adjusts the output voltage of the DC/DC
• Overload Protection
converter and therefore the output power of an
RF-PA.
• Undervoltage Lockout
• Thermal Protection
The TPS6270x operates in fixed-frequency PWM
mode at a 2.0-MHz switching frequency to minimize
• 8-Pin WCSP Package
RF interference. This converter operates with only
three small external components; an input capacitor,
inductor and output capacitor. The TPS62701 has in
• Cell Phones, Smart Phones
addition a built-in clock-dithering circuit to reduce RF
• Battery-Powered RF Amplifier
noise.
The TPS6270x is available in a tiny 8 pin lead free
WCSP package for smallest solution size.
TYPICAL APPLICATION
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2007–2008, 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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