LTC3407EMSE-2 Linear Technology, LTC3407EMSE-2 Datasheet

LTC3407EMSE-2

Manufacturer Part Number

LTC3407EMSE-2

Description

IC,SMPS CONTROLLER,CURRENT-MODE,CMOS,TSSOP,10PIN,PLASTIC

Manufacturer

Linear Technology

Datasheets

1.LTC3407AEDD-TRPBF.pdf (16 pages)

2.LTC3407EMSE-2.pdf (16 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC3407EMSE-2

Manufacturer:

Quantity:

10 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LTC3407EMSE-2

Manufacturer:

LTNEAR

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC3407EMSE-2#PBF

Manufacturer:

Quantity:

1 110

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC3407EMSE-2#TR

Manufacturer:

LINEAR

Quantity:

5 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

LTC3407EMSE-2#TR

Manufacturer:

LT/凌特

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC3407EMSE-2#TRPBF

Manufacturer:

LINEAR

Quantity:

9 620

Company:

Meier Automation Equipment Co., Limited

Part Number:

LTC3407EMSE-2#TRPBF

Manufacturer:

LINEAR/凌特

Quantity:

20 000

Company:

H&T Electronics

Part Number:

LTC3407EMSE-2#TRPBF

Quantity:

150

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LTC3407EMSE-2TRPBF

Quantity:

119

Current page: 1 of 16
Download datasheet (220Kb)

FEATURES

■

APPLICATIO S

■

TYPICAL APPLICATIO

High Efficiency: Up to 95%

Very Low Quiescent Current: Only 40µA

2.25MHz Constant Frequency Operation

High Switch Current: 1.2A on Each Channel

No Schottky Diodes Required

Low R

Current Mode Operation for Excellent Line

and Load Transient Response

Short-Circuit Protected

Low Dropout Operation: 100% Duty Cycle

Ultralow Shutdown Current: I

Output Voltages from 5V down to 0.6V

Power-On Reset Output

Externally Synchronizable Oscillator

Small Thermally Enhanced MSOP and 3mm × 3mm

DFN Packages

PDAs/Palmtop PCs

Digital Cameras

Cellular Phones

Portable Media Players

PC Cards

Wireless and DSL Modems

OUT2

AT 800mA

= 2.5V

10µF

DS(ON)

TO 5.5V

= 2.5V*

C1, C2, C3: TAIYO YUDEN JMK316BJ106ML

Figure 1. 2.5V/1.8V at 800mA Step-Down Regulators

Internal Switches: 0.35Ω

C5, 22pF

887k

280k

10µF

2.2µH

OUT

CONNECTED TO V

MODE/SYNC

SW2

RUN2

FB2

< 1µA

LTC3407-2

GND

RUN1

FOR V

SW1

POR

L1, L2: MURATA LQH32CN2R2M33

FB1

≤ 2.8V

2.2µH

100k

301k

C4, 22pF

RESET

604k

Dual Synchronous, 800mA,

DESCRIPTIO

The LTC

nous step down DC/DC converter. Intended for low power

applications, it operates from 2.5V to 5.5V input voltage

range and has a constant 2.25MHz switching frequency,

allowing the use of tiny, low cost capacitors and inductors

with a profile ≤1.2mm. Each output voltage is adjustable

from 0.6V to 5V. Internal synchronous 0.35Ω, 1.2A power

switches provide high efficiency without the need for

external Schottky diodes.

A user selectable mode input is provided to allow the user

to trade-off noise ripple for low power efficiency. Burst

Mode

while Pulse Skip Mode provides low noise ripple at light

loads.

To further maximize battery life, the P-channel MOSFETs

are turned on continuously in dropout (100% duty cycle),

and both channels draw a total quiescent current of only

40µA. In shutdown, the device draws <1µA.

Burst Mode is a registered trademark of Linear Technology Corporation.

, LTC and LT are registered trademarks of Linear Technology Corporation.

10µF

AT 800mA

OUT1

= 1.8V

operation provides high efficiency at light loads,

3407 TA01

3407-2 is a dual, constant frequency, synchro-

2.25MHz Step-Down

DC/DC Regulator

100

Burst Mode OPERATION

NO LOAD ON OTHER CHANNEL

LTC3407-2 Efficiency Curve

= 3.3V

LOAD CURRENT (mA)

LTC3407-2

100

1.8V

sn34072 34072fs

2.5V

3407 TA02

1000

Related parts for LTC3407EMSE-2

Related keywords

LTC3407EMSE-2 datasheet
LTC3407EMSE-2 data sheet
LTC3407EMSE-2 pdf datasheet
LTC3407EMSE-2 component
LTC3407EMSE-2 part
LTC3407EMSE-2 distributor
LTC3407EMSE-2 RoHS
LTC3407EMSE-2 datasheet download