LT3467ES6 Linear Technology Corporation, LT3467ES6 Datasheet
LT3467ES6
Manufacturer Part Number
LT3467ES6
Description
Manufacturer
Linear Technology Corporation
Datasheet
1.LT3467AES67.pdf
(16 pages)
Specifications of LT3467ES6
Case
SOT-163
Date_code
2008+
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TYPICAL APPLICATIO
FEATURES
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APPLICATIO S
Digital Cameras
White LED Power Supplies
Cellular Phones
Medical Diagnostic Equipment
Local 5V or 12V Supplies
TFT-LCD Bias Supplies
xDSL Power Supplies
1.3MHz Switching Frequency (LT3467)
2.1MHz Switching Frequency (LT3467A)
Low V
High Output Voltage: Up to 40V
Wide Input Range: 2.4V to 16V
Dedicated Soft-Start Pin
5V at 540mA from 3.3V Input (LT3467)
5V at 430mA from 3.3V Input (LT3467A)
12V at 270mA from 5V Input (LT3467)
12V at 260mA from 5V Input (LT3467A)
Uses Small Surface Mount Components
Low Shutdown Current: < 1μA
Pin-for-Pin Compatible with the LT1930 and LT1613
Low Profile (1mm) ThinSOT
Low Profile (0.75mm) 8-Lead (3mm x 2mm)
DFN Package
2.6V TO
4.2V
V
IN
CESAT
0.047μF
OFF ON
4.7μF
Switch: 330mV at 1.1A
Single Li-Ion Cell to 5V Boost Converter
U
SHDN
SS
V
IN
LT3467
2.7μH
GND
™
SW
FB
Package
U
402k
133k
3.3pF
3467 TA01a
15μF
V
5V
765mA AT V
540mA AT V
360mA AT V
OUT
DESCRIPTIO
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
The LT
42V, 1.1A switch with a soft-start function. Pin compatible
with the LT1930, its low V
device to deliver high current outputs in a small footprint.
The LT3467 switches at 1.3MHz, allowing the use of tiny,
low cost and low height inductors and capacitors. The
LT3467A switches at 2.1MHz, allowing the use of even
smaller components. High inrush current at start-up is
eliminated using the programmable soft-start function. A
single external capacitor sets the current ramp rate. A
constant frequency current mode PWM architecture re-
sults in low, predictable output noise that is easy to filter.
The high voltage switch on the LT3467/LT3467A is rated
at 42V, making the devices ideal for boost converters up
to 40V as well as SEPIC and flyback designs. The LT3467
can generate 5V at up to 540mA from a 3.3V supply or 5V
at 450mA from four alkaline cells in a SEPIC design. The
LT3467A can generate 5V at up to 430mA from a 3.3V
supply or 15V at 135mA from a 3.3V supply. The LT3467/
LT3467A are available in a low profile (1mm) 6-lead
SOT-23 package and tiny 3mm x 2mm DFN package.
IN
IN
IN
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
= 4.2V,
= 3.3V,
= 2.6V
®
3467/LT3467A switching regulators combine a
1.1A Step-Up DC/DC
Integrated Soft-Start
95
90
85
80
75
70
65
60
55
50
U
100
200 300 400 500
Converter with
CESAT
LT3467/LT3467A
V
Efficiency
IN
bipolar switch enables the
I
OUT
= 2.6V
(mA)
V
IN
600
= 3.3V
700 800
V
IN
3467 TA01b
= 4.2V
900
3467afc
1
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