LTC3414EFE#PBF datasheet, PDF - EEWORLD Datasheet

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LTC3414EFE#PBF: DescriptionIC REG BUCK ADJ 4A SYNC 20TSSOP; CategoryPower/power management The power supply circuit; File Size263KB，16 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

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LTC3414EFE#PBF Overview

IC REG BUCK ADJ 4A SYNC 20TSSOP

LTC3414EFE#PBF Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	conform to
Maker	Linear ( ADI )
Parts packaging code	TSSOP
package instruction	HTSSOP, TSSOP20,.25
Contacts	20
Manufacturer packaging code	FE
Reach Compliance Code	compliant
ECCN code	EAR99
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
control mode	CURRENT-MODE
Maximum input voltage	5.5 V
Minimum input voltage	2.25 V
Nominal input voltage	3.3 V
JESD-30 code	R-PDSO-G20
JESD-609 code	e3
length	6.5 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	20
Maximum operating temperature	85 °C
Minimum operating temperature
Maximum output current	9.5 A
Package body material	PLASTIC/EPOXY
encapsulated code	HTSSOP
Encapsulate equivalent code	TSSOP20,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.2 mm
surface mount	YES
Switch configuration	BUCK
Maximum switching frequency	4000 kHz
technology	CMOS
Temperature level	COMMERCIAL EXTENDED
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	30
width	4.4 mm
Base Number Matches	1

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LTC3414

4A, 4MHz, Monolithic

Synchronous Step-Down Regulator

DESCRIPTIO

The LTC

3414 is a high efficiency monolithic synchro-

nous, step-down DC/DC converter utilizing a constant

frequency, current mode architecture. It operates from an

input voltage range of 2.25V to 5.5V and provides a

regulated output voltage from 0.8V to 5V while delivering

up to 4A of output current. The internal synchronous

power switch with 67mΩ on-resistance increases effi-

ciency and eliminates the need for an external Schottky

diode. Switching frequency is set by an external resistor or

can be synchronized to an external clock. 100% duty cycle

provides low dropout operation extending battery life in

portable systems. OPTI-LOOP

compensation allows the

transient response to be optimized over a wide range of

loads and output capacitors.

The LTC3414 can be configured for either Burst Mode

operation or forced continuous operation. Forced continu-

ous operation reduces noise and RF interference while

Burst Mode operation provides high efficiency by reduc-

ing gate charge losses at light loads. In Burst Mode

operation, external control of the burst clamp level allows

the output voltage ripple to be adjusted according to the

requirements of the application.

FEATURES

■

High Efficiency: Up to 95%

4A Output Current

Low Quiescent Current: 64μA

Low R

DS(ON)

Internal Switch: 67mΩ

Programmable Frequency: 300KHz to 4MHz

2.25V to 5.5V Input Voltage Range

±2%

Output Voltage Accuracy

0.8V Reference Allows Low Output Voltage

Selectable Forced Continuous/Burst Mode

Operation

with Adjustable Burst Clamp

Synchronizable Switching Frequency

Low Dropout Operation: 100% Duty Cycle

Power Good Output Voltage Monitor

Overtemperature Protected

Available in 20-Lead Exposed TSSOP Package

APPLICATIO S

■

Point-of-Load Regulation

Notebook Computers

Portable Instruments

Distributed Power Systems

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

Burst Mode and OPTI-LOOP are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Protected by U.S. Patents, Including 5481178, 6580258, 6304066, 6127815, 6498466,

6611131, 6724174

TYPICAL APPLICATIO

2.7V TO 5.5V

2.2M

294k

22μF

100

PGOOD

LTC3414

0.47μH

EFFICIENCY (%)

RUN/SS

1000pF

470pF

ITH

PGND

OUT

2.5V AT 4A

OUT

FORCED

CONTINUOUS

SGND

SYNC/MODE

3414 F01a

0.001

0.01

0.1

1.0

LOAD CURRENT (A)

3414 F01b

75k

110k

392k

*Burst Mode OPERATION: C

OUT

= 470μF SANYO POSCAP 4TPB470M, R

ITH

= 20k

FORCED CONTINUOUS: C

OUT

= (2) 100μF TDKC4532X5ROJ107M, R

ITH

= 12.1k

Figure 1. 2.5V/4A Step-Down Regulator

3414fb

LTC3414 Efficiency Curve

Burst Mode OPERATION

LTC3414EFE#PBF Related Products

	LTC3414EFE#PBF	LTC3414EFE#TR	LTC3414MPFE#TRPBF	LTC3414EFE#TRPBF	LTC3414MPFE#PBF	LTC3414IFE#TRPBF	LTC3414IFE#PBF
Description	IC REG BUCK ADJ 4A SYNC 20TSSOP	IC reg buck sync adj 4A 20tssop	IC REG BUCK ADJ 4A SYNC 20TSSOP	IC REG BUCK ADJ 4A SYNC 20TSSOP	IC REG BUCK ADJ 4A SYNC 20TSSOP	IC REG BUCK ADJ 4A SYNC 20TSSOP	Output current: 4A Switch operating frequency: 1MHz Output type: Adjustable Number of output voltage channels: 1 Function type: Step-Down Output configuration: Positive
Brand Name	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	conform to	incompatible	conform to	conform to	conform to	conform to	conform to
Maker	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	TSSOP	TSSOP	TSSOP	TSSOP	TSSOP	TSSOP	TSSOP
package instruction	HTSSOP, TSSOP20,.25	HTSSOP, TSSOP20,.25	HTSSOP, TSSOP20,.25	HTSSOP, TSSOP20,.25	HTSSOP, TSSOP20,.25	HTSSOP, TSSOP20,.25	HTSSOP, TSSOP20,.25
Contacts	20	20	20	20	20	20	20
Manufacturer packaging code	FE	FE	FE	FE	FE	FE	FE
Reach Compliance Code	compliant	_compli	compliant	compliant	compliant	compliant	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR	SWITCHING REGULATOR
control mode	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Maximum input voltage	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Minimum input voltage	2.25 V	2.25 V	2.25 V	2.25 V	2.25 V	2.25 V	2.25 V
Nominal input voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
JESD-30 code	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20	R-PDSO-G20
JESD-609 code	e3	e0	e3	e3	e3	e3	e3
length	6.5 mm	6.5 mm	6.5 mm	6.5 mm	6.5 mm	6.5 mm	6.5 mm
Humidity sensitivity level	1	1	1	1	1	1	1
Number of functions	1	1	1	1	1	1	1
Number of terminals	20	20	20	20	20	20	20
Maximum operating temperature	85 °C	85 °C	125 °C	85 °C	125 °C	85 °C	85 °C
Maximum output current	9.5 A	9.5 A	9.5 A	9.5 A	9.5 A	9.5 A	9.5 A
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	HTSSOP	HTSSOP	HTSSOP	HTSSOP	HTSSOP	HTSSOP	HTSSOP
Encapsulate equivalent code	TSSOP20,.25	TSSOP20,.25	TSSOP20,.25	TSSOP20,.25	TSSOP20,.25	TSSOP20,.25	TSSOP20,.25
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260	235	260	260	260	260	250
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.2 mm	1.2 mm	1.2 mm	1.2 mm	1.2 mm	1.2 mm	1.2 mm
surface mount	YES	YES	YES	YES	YES	YES	YES
Switch configuration	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK	BUCK
Maximum switching frequency	4000 kHz	4000 kHz	4000 kHz	4000 kHz	4000 kHz	4000 kHz	4000 kHz
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	COMMERCIAL EXTENDED	COMMERCIAL EXTENDED	MILITARY	COMMERCIAL EXTENDED	MILITARY	COMMERCIAL EXTENDED	COMMERCIAL EXTENDED
Terminal surface	Matte Tin (Sn)	Tin/Lead (Sn/Pb)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	30	20	30	30	30	30	NOT SPECIFIED
width	4.4 mm	4.4 mm	4.4 mm	4.4 mm	4.4 mm	4.4 mm	4.4 mm

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