LTC7813 datasheet(36/36 Pages) LINER

36 / 36 page

LTC7821

Rev A

For more information www.analog.com



ANALOG DEVICES, INC. 2017-2018

D16842-0-4/18(A)

www.analog.com

RELATED PARTS

TYPICAL APPLICATION

PART NUMBER DESCRIPTION

COMMENTS

LTC7820

Fixed Ratio High Power Inductorless (Charge Pump)

DC/DC Controller

6V < V ≤ VIN 72V, Fixed 50% Duty Cycle, 100kHz to 1MHz Switching Frequency

(4mm × 5mm) UFD Package

LTC3895

150V Low IQ, Synchronous Step-Down DC/DC

Controller

4V ≤ VIN ≤ 140V, 150VPK, 0.8V ≤ VOUT ≤ 24V, IQ = 50µA, PLL Fixed Frequency

50kHz to 900kHz

LTC3810

100V Synchronous Step-Down DC/DC Controller

Constant On-Time Valley Current Mode 6.2V ≤ VIN ≤ 100V, 0.8V ≤ VOUT ≤ 0.93VIN,

SSOP-28

LTC3891

60V, Low IQ, Synchronous Step-Down DC/DC

Controller with 99% Duty Cycle

4V ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 24V, IQ = 50µA, PLL Fixed Frequency 50kHz to

900kHz

LT3840

60V, Low IQ, Synchronous Step-Down Controller

with Integrated Buck-Boost Bias Voltage Regulator

2.5V ≤ VIN ≤ 60V, 1.23V ≤ VOUT ≤ 60V, IQ = 75µA, Synchronizable Fixed Frequency

100kHz to 600kHz

LTC3892/

LTC3892-1

60V Low IQ, Dual, 2-Phase Synchronous Step-Down

DC/DC Controller with 99% Duty Cycle

4V ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 0.99VIN, PLL Fixed Frequency 50kHz to 900kHz,

Adjustable 5V to 10V Gate Drive, IQ = 29µA

LTC7813

Low IQ, Synchronous Boost + Buck

DC/DC Controller

4.5V (Down to 2.2V After Start-Up) ≤ VIN ≤ 60V, 0.8V ≤ VOUT ≤ 60V, Adjustable 5V

to 10V Gate Drive, IQ = 33µA

LT8705A

80V VIN and VOUT Synchronous 4-Switch

Buck-Boost DC/DC Controller

2.8V ≤ VIN ≤ 80V, 100kHz to 400kHz Programmable Operating Frequency

(5mm × 7mm) QFN-38 and TSSOP-38

LTC3886

60V Dual Output Step-Down Controller with PSM

4.5V ≤ VIN ≤ 60V, 0.5V ≤ VOUT (±0.5%) ≤ 13.8V, Input Current Sense, I2C/PMBus

Interface with EEPROM and 16-Bit ADC

LTC3871

Bidirectional Multiphase Synchronous Buck or Boost

Controller

Regulation of Input Voltage, Output Voltage or Current VHIGH Up to 100V, VLOW

Voltages Up to 30V

High Efficiency 500kHz 2-Phase 48V to 12V at 40A Step-Down Converter

L1, 2µH

CFLY1

10µF

×8

14.7k

CB1

0.22µF

CB2

0.47µF

CB3

1µF

CVCC

4.7µF

CIN

100µF

×2

R2, 100

C6, 0.1µF

R11

55.57k

1µF

10k

C10

0.1µF

0.015µF

COUT

150µF

×4

VOUT

12V, 40A

R3, 1k

RFB1

60.4k

RFB2

4.32k

0.1µF

C7, 0.1µF

10µF

×4

R6, 68k

R7, 100k

6.81k

C11

0.22µF

VIN_SENSE

VIN

TEMP

CLKOUT

TIMER

RUN

FREQ

HYS_PRGM

EXT_REF

FAULT

PGOOD

MODE/PLLIN

ITH

TRACK/SS

EXTVCC

VFB

ISNS+

ISNS–

PGND

INTVCC

BG2

SW3

BOOST3

TG2

MID_SENSE

MID

BOOST2

BG1

SW1

BOOST1

7821 TA02

TG1

INTVCC1

INTVCC2

PGOOD

FAULT

100pF

10µF

×8

2.2µF

×6

VIN

36V TO 72V

VIN_SENSE

VIN

TEMP

TIMER

RUN

FREQ

HYS_PRGM

EXT_REF

FAULT

PGOOD

MODE/PLLIN

ITH

TRACK/SS

EXTVCC

VFB

ISNS+

ISNS–

PGND

INTVCC

BG2

SW3

BOOST3

TG2

MID_SENSE

MID

BOOST2

BG1

SW1

BOOST1

TG1

INTVCC2

L2, 2µH

CFLY2

10µF

×8

CB4

0.22µF

C13

0.1µF

C12

1µF

CB5

0.47µF

CB6

1µF

CVCC1

4.7µF

R16

6.81k

R15, 100k

R14, 100k

R10, 100

R13, 1k

C22

0.22µF

C17

0.1µF

C18

10µF

×8

R9 : MURATA PRF15BC102RB6RC

M1, M5: INFINEON BSC057N08NS3

M2, M3, M6, M7: INFINEON BSC032N04LS

M4, M6: INFINEON BSC014N04LSI

L1, L2 : COILCRAFT SER2011-202ML

CFLY1, CFLY2, C2, C18: MURATA GRM32ER71H106KA12

D1 TO D6 : CENTRAL SEMICONDUCTOR CMDSH-4

VOUT

12V

TO EXTVCC PIN OF LTC7821

VIN

LTC3621

LTC7813 датащи(PDF) 36 Page - Linear Technology

LTC7813 датащи(HTML) 36 Page - Linear Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36

датащи скачать

ссылки URL