LTC1628CG-SYNC datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > LTC1628CG-SYNC

LTC1628CG-SYNC: DescriptionDC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP; File Size644KB，32 Pages; ManufacturerADI; Websitehttps://www.analog.com

Download Datasheet Parametric Compare View All

LTC1628CG-SYNC Overview

DC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP

LTC1628CG-SYNC Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Not Compliant
ECCN (US)	EAR99
Part Status	Unconfirmed
HTS	8542.39.00.01
SVHC	Yes
SVHC Exceeds Threshold	Yes
Number of Outputs	2
Topology	Step Down
Output Voltage (V)	5\|3.3
Maximum Output Current (A)	3\|3\|3\|3\|3\|3\|3\|3
Maximum Switching Frequency (kHz)	360
Minimum Input Voltage (V)	3.5
Maximum Input Voltage (V)	36
Operating Supply Voltage (V)	3.5 to 36
Maximum Supply Current (mA)	0.35(Typ)
Minimum Operating Temperature (°C)	0
Maximum Operating Temperature (°C)	85
Supplier Temperature Grade	Commercial
Pin Count	28
Standard Package Name	SOP
Supplier Package	SSOP
Mounting	Surface Mount
Package Height	2(Max) - 0.05(Min)
Package Length	10.5(Max)
Package Width	5.6(Max)
PCB changed	28
Lead Shape	Gull-wing

Preview

Download Datasheet

View All

LTC1628-SYNC

High Efficiency, 2-Phase

Synchronous Step-Down Switching Regulator

FEATURES

■

DESCRIPTIO

Out-of-Phase Controllers Reduce Required Input

Capacitance and Power Supply Induced Noise

OPTI-LOOP

Compensation Minimizes C

OUT

Dual N-Channel MOSFET Synchronous Drive

±1%

Output Voltage Accuracy

Power Good Output Voltage Monitor

Phase-Lockable Fixed Frequency 150kHz to 300kHz

Wide V

Range: 3.5V to 36V Operation

Very Low Dropout Operation: 99% Duty Cycle

Adjustable Soft-Start Current Ramping

Foldback Output Current Limiting

Latched Short-Circuit Shutdown with Defeat Option

Output Overvoltage Protection

Remote Output Voltage Sense

Low Shutdown I

: 20µA

5V and 3.3V Standby Regulators

Selectable Constant Frequency or Burst Mode

Operation

Small 28-Lead SSOP Package

The LTC

1628-SYNC is a high performance dual step-

down switching regulator controller that drives all

N-channel synchronous power MOSFET stages. A con-

stant frequency current mode architecture allows phase-

lockable frequency of up to 300kHz. Power loss and noise

due to the ESR of the input capacitors are minimized by

operating the two controller output stages out of phase.

OPTI-LOOP compensation allows the transient response

to be optimized over a wide range of output capacitance and

ESR values. The precision 0.8V reference and power good

output indicator are compatible with future microproces-

sor generations, and a wide 3.5V to 30V (36V maximum)

input supply range encompasses all battery chemistries.

A RUN/SS pin for each controller provides both soft-start

and optional timed, short-circuit shutdown. Current

foldback limits MOSFET dissipation during short-circuit

conditions when overcurrent latchoff is disabled. Output

overvoltage protection circuitry latches on the bottom

MOSFET until V

OUT

returns to normal. The FCB mode pin

can select among Burst Mode, constant frequency mode

and continuous inductor current mode or regulate a

secondary winding.

, 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, 5929620, 6177787, 6144194, 6100678, 5408150, 6580258, 6304066,

5705919.

APPLICATIO S

■

Notebook and Palmtop Computers, PDAs

Telecom Systems

Battery-Operated Digital Devices

DC Power Distribution Systems

TYPICAL APPLICATIO

6.3µH

4.7µF

, 0.1µF

SENSE1

0.01Ω

OUT1

PGOOD INTV

TG1

BOOST1

SW1

BG1

LTC1628-SYNC

TG2

BOOST2

SW2

BG2

PGND

SENSE2

1000pF

SENSE1

–

OSENSE1

105k

SENSE2

–

OSENSE2

TH2

SS2

0.1µF

220pF

15k

1µF

CERAMIC

, 0.1µF

PLLIN

SENSE1

1000pF

OUT1

47µF

20k

220pF

15k

TH1

SS1

0.1µF

RUN/SS1 SGND RUN/SS2

M1, M2, M3, M4: FDS6680A

Figure 1. High Efficiency Dual 5V/3.3V Step-Down Converter

5.2V TO 28V

22µF

50V

CERAMIC

6.3µH

SENSE2

0.01Ω

OUT2

3.3V

OUT

56µF

20k

63.4k

1628 F01

1628syncfa

LTC1628CG-SYNC Related Products

	LTC1628CG-SYNC	LTC1628CG-SYNC#PBF	LTC1628CG-SYNC#TR	LTC1628CG-SYNC#TRPBF	LTC1628IG-SYNC#TR	LTC1628IG-SYNC#TRPBF
Description	DC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP	DC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP Tube	DC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP T/R	DC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP T/R	DC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP T/R	DC/DC Cntrlr Dual-OUT Step Down 3A/3A 360kHz Automotive 28-Pin SSOP T/R
EU restricts the use of certain hazardous substances	Not Compliant	Compliant	Not Compliant	Compliant	Not Compliant	Compliant
ECCN (US)	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
Part Status	Unconfirmed	Active	Unconfirmed	Active	Unconfirmed	Active
Number of Outputs	2	2	2	2	2	2
Topology	Step Down	Step Down	Step Down	Step Down	Step Down	Step Down
Output Voltage (V)	5\|3.3	5\|3.3	5\|3.3	5\|3.3	3.3\|5	5\|3.3
Maximum Output Current (A)	3\|3\|3\|3\|3\|3\|3\|3	3\|3\|3\|3\|3\|3\|3\|3\|3	3\|3\|3\|3\|3\|3\|3\|3\|3	3\|3\|3\|3\|3\|3\|3\|3\|3	3\|3\|3\|3\|3\|3\|3\|3\|3	3\|3\|3\|3\|3\|3\|3\|3\|3
Maximum Switching Frequency (kHz)	360	360	360	360	360	360
Minimum Input Voltage (V)	3.5	3.5	3.5	3.5	3.5	3.5
Maximum Input Voltage (V)	36	36	36	36	36	36
Operating Supply Voltage (V)	3.5 to 36	3.5 to 36	3.5 to 36	3.5 to 36	3.5 to 36	3.5 to 36
Maximum Supply Current (mA)	0.35(Typ)	0.35(Typ)	0.35(Typ)	0.35(Typ)	0.35(Typ)	0.35(Typ)
Maximum Operating Temperature (°C)	85	85	85	85	85	85
Supplier Temperature Grade	Commercial	Commercial	Commercial	Commercial	Industrial	Industrial
Pin Count	28	28	28	28	28	28
Standard Package Name	SOP	SOP	SOP	SOP	SOP	SOP
Supplier Package	SSOP	SSOP	SSOP	SSOP	SSOP	SSOP
Mounting	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package Height	2(Max) - 0.05(Min)	2(Max) - 0.05(Min)	2(Max) - 0.05(Min)	2(Max) - 0.05(Min)	2(Max) - 0.05(Min)	2(Max) - 0.05(Min)
Package Length	10.5(Max)	10.5(Max)	10.5(Max)	10.5(Max)	10.5(Max)	10.5(Max)
Package Width	5.6(Max)	5.6(Max)	5.6(Max)	5.6(Max)	5.6(Max)	5.6(Max)
PCB changed	28	28	28	28	28	28
Lead Shape	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing	Gull-wing
HTS	8542.39.00.01	-	8542.39.00.01	8542.39.00.01	-	8542.39.00.01
Packaging	-	Tube	Tape and Reel	Tape and Reel	Tape and Reel	Tape and Reel

Recommended Resources

Bedside touch light detection control circuit

TDA7233D power amplifier circuit diagram

Rice cooker temperature controller

Combustible gas alarm circuit (2)

555 light controlled oscillator

Circuit diagram to suppress capacitor discharge

Learn from those who have Microsoft Embedded MCTS certification experience: Recommended download - Microsoft Certified Technology Specialist (MCTS) for Windows Embedded and free simplified Chinese version of the certification preparation toolkit http://topic.eeworld.net/u/200...; ljpronaldo Embedded System

LED lighting characteristics and driver types: Compared with energy-saving bulbs used in general photovoltaic power sources, semiconductor lighting has many advantages such as energy saving, long life, safety, environmental protection, rich colors...; 探路者 LED Zone

Girls near Zhichun Road, are there any friends who want to exercise early in the morning?: Recently I feel more and more that I can't do without exercise. Although relying on the previous training experience, I can eat well for a few more years without any problem:lol So I plan to find a fi...; soso Talking

Software programming implementation of wireless natural gas alarm system: Software programming implementation of wireless natural gas alarm systemby fxw451For a beginner, TI's routines are something that these chip companies cannot do, and they are written in great detail. ...; fxw451 Microcontroller MCU

【Design Tools】 SerialIO Chinese documentation: SerialIO Chinese documentation[[i]This post was last edited by GONGHCU on 2012-2-23 02:56[/i]]...; GONGHCU FPGA/CPLD

Are there any pioneers of IAREWSTM8?: Who has application experience?After IAR released EWSTM8, I did not see the standard routine framework it provided, just like the standard engineering framework of EWSTM32. No startup files, CONF file...; painache stm32/stm8

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components