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TLV62065 Datasheet(PDF) 16 Page - Texas Instruments

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Part # TLV62065
Description  3-MHz 2A Step Down Converter in 2x2 SON Package
PDF  26 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TLV62065 Datasheet(HTML) 16 Page - Texas Instruments

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TLV62065
V
= 1.8 V
up to 2 A
OUT
R
360 k
1
Ω
R
180 k
2
Ω
V
= 2.9 V to 5.5 V
IN
C
10
OUT
µ
F
C
10
IN
µ
F
PVIN
AVIN
EN
MODE
AGND
PGND
SW
FB
C
22 pF
ff
L
1.0 H
m
V
OUT + VREF
1 )
R
1
R
2
2
c
ff
1
=
= 35kHz
2
R
C
f
p
´
´
´
ff
2
1
C
=
2
R
35kHz
p
´
´
´
TLV62065
SLVSAC4 – NOVEMBER 2010
www.ti.com
APPLICATION INFORMATION
Figure 23. TLV62065 1.8V Adjustable Output Voltage Configuration
OUTPUT VOLTAGE SETTING
The output voltage can be calculated to:
with an internal reference voltage VREF typically 0.6V.
To minimize the current through the feedback divider network, R2 should be within the range of 120 kΩ to 360
k
Ω. The sum of R1 and R2 should not exceed ~1MΩ, to keep the network robust against noise. An external feed-
forward capacitor Cff is required for optimum regulation performance. Lower resistor values can be used. R1 and
Cff places a zero in the loop. The right value for Cff can be calculated as:
16
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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s) :TLV62065



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