Datasheet Linear Technology LT3467A

Manufacturer	Linear Technology
Series	LT3467A

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

Datasheets

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

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Packaging

	LT3467EDDB#PBF	LT3467EDDB#TRMPBF	LT3467EDDB#TRPBF	LT3467ES6#PBF	LT3467ES6#TRMPBF	LT3467ES6#TRPBF	LT3467IDDB#PBF	LT3467IDDB#TRMPBF	LT3467IDDB#TRPBF	LT3467IS6#PBF	LT3467IS6#TRMPBF	LT3467IS6#TRPBF
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	3x2 DFN-8 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing	SOT-23 Package Outline Drawing
Package Code	DDB	DDB	DDB	S6	S6	S6	DDB	DDB	DDB	S6	S6	S6
Package Index	05-08-1702	05-08-1702	05-08-1702	05-08-1636	05-08-1636	05-08-1636	05-08-1702	05-08-1702	05-08-1702	05-08-1636	05-08-1636	05-08-1636
Pin Count	8	8	8	6	6	6	8	8	8	6	6	6

Parametrics

Parameters / Models	LT3467EDDB#PBF	LT3467EDDB#TRMPBF	LT3467EDDB#TRPBF	LT3467ES6#PBF	LT3467ES6#TRMPBF	LT3467ES6#TRPBF	LT3467IDDB#PBF	LT3467IDDB#TRMPBF	LT3467IDDB#TRPBF	LT3467IS6#PBF	LT3467IS6#TRMPBF	LT3467IS6#TRPBF
Architecture	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode	Constant Frequency Current Mode
Demo Boards	DC647A	DC647A	DC647A	DC647A	DC647A	DC647A	DC647A	DC647A	DC647A	DC647A	DC647A	DC647A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
Frequency, kHz	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100	2100
Integrated Inductor	no	no	no	no	no	no	no	no	no	no	no	no
Ishutdown, µA	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01
Isupply, mA	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2
Monolithic	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	yes
Number of Outputs	1	1	1	1	1	1	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85	0 to 85	0 to 85	0 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Polyphase	no	no	no	no	no	no	no	no	no	no	no	no
Switch Current, A	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1	1.1
Synchronous	no	no	no	no	no	no	no	no	no	no	no	no
Topology	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback
Topology 1	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback	Boost, Sepic, Flyback
Vin Max, V	16	16	16	16	16	16	16	16	16	16	16	16
Vin Min, V	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2
Vin Min Startup, V	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2	2.2
Vout Max, V	40	40	40	40	40	40	40	40	40	40	40	40
Vout Max 2, V	40	40	40	40	40	40	40	40	40	40	40	40
Vout Min, V	1.255	1.255	1.255	1.255	1.255	1.255	1.255	1.255	1.255	1.255	1.255	1.255
Vswitch Max, V	42	42	42	42	42	42	42	42	42	42	42	42

Eco Plan

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

Other Options

LT3467

Design Notes

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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