Datasheet Linear Technology LT3467EDDB#TRMPBF

Manufacturer	Linear Technology
Series	LT3467A
Part Number	LT3467EDDB#TRMPBF

1.1A Step-Up DC/DC Converter with Integrated Soft-Start

Datasheets

PDF, 278 Kb, Revision: E, File uploaded: Sep 18, 2017

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Packaging

Package	3x2 DFN-8
Package Code	DDB
Package Index	05-08-1702

Parametrics

Architecture	Constant Frequency Current Mode
Demo Boards	DC647A
Design Tools	LTspice File
Export Control	no
Frequency	2100 kHz
Integrated Inductor	no
Ishutdown	0.01 µA
Isupply	1.2 mA
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Polyphase	no
Switch Current	1.1 A
Synchronous	no
Topology	Boost, Sepic, Flyback
Topology 1	Boost, Sepic, Flyback
Vin Max	16 V
Vin Min	2.2 V
Vin Min Startup	2.2 V
Vout Max	40 V
Vout Max 2	40 V
Vout Min	1.255 V
Vswitch Max	42 V

Eco Plan

RoHS

Compliant

Other Options

Design Notes

Download
ThinSOT Switching Regulator Controls Inrush Current &mdash DN365
PDF, 112 Kb, File published: Apr 21, 2005
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advertisement ThinSOT Switching Regulator Controls Inrush Current
Design Note 365
Jesus Rosales
Introduction
Inrush current can be troublesome, especially when
regulators are operated from batteries or a currentlimited source. In such cases, excessive inrush current
can cause the input source to collapse and prevent the
converter from ever starting up. Inrush current can also
trip input line fuses or cause the output to overshoot.
There are many ways to deal with this problem, but most
of them are difп¬Ѓcult to implement or have undesirable
side effects, often making the cure worse than the cause. IIN
0.2A/DIV
VOUT
5V/DIV
50Ојs/DIV Figure 2. Input Current and Output Voltage at Turn-On
Without CSS Capacitor for Figure 1 Circuit A Simple Solution
Figure 1 shows a solution to this problem using the
LTВ®3467 in a 10V-16V input to 12V/300mA output SEPIC
converter. The LT3467 ThinSOTв„ў switching regulator
integrates a soft-start function with a built-in 42V,
1.1A switch. Figures 2 and 3 illustrate the effect that
the LT3467вЂ™s soft-start feature has on inrush currents. IIN …

Articles

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1.1A Boost Provides Soft-Start Capability in Tiny ThinSOT Package &mdash LT Journal
PDF, 475 Kb, File published: Mar 25, 2005
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DESIGN FEATURES 1.1A Boost Provides Soft-Start
Capability in Tiny ThinSOT Package
Introduction by Brian Adolf L1
2.7ВµH
C1
4.7ВµF OFF ON C3
0.047ВµF 4 D1 6 1 VIN SW SHDN
LT3467
5
SS R1
402k C4
3.3pF VOUT
5V
765mA AT VIN = 4.2V,
540mA AT VIN = 3.3V,
360mA AT VIN = 2.6V 3 FB R2
133k GND
2 C2
15ВµF C1, C2: X5R OR X7R, 6.3V
D1: ON SEMICONDUCTOR MBRM120
L1: SUMIDA CR43-2R7 95
90
VIN = 4.2V 85 …

Model Line

Series: LT3467A (12)

LT3467EDDB#PBF LT3467EDDB#TRMPBF LT3467EDDB#TRPBF LT3467ES6#PBF LT3467ES6#TRMPBF LT3467ES6#TRPBF LT3467IDDB#PBF LT3467IDDB#TRMPBF LT3467IDDB#TRPBF LT3467IS6#PBF LT3467IS6#TRMPBF LT3467IS6#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > LCD/CCD/OLED Bias | SEPIC Regulators
Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost

Other Names:

LT3467EDDBTRMPBF, LT3467EDDB TRMPBF

Slices

Microcontrollers