LT3587EUD-PBF Ver la hoja de datos (PDF) - Linear Technology

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Fabricante

LT3587EUD-PBF

High Voltage Monolithic Inverter and Dual Boost

Linear Technology 

LT3587

BLOCK DIAGRAM

EN/SS3

VIN

1μA

C5

+

A8

200mV –

FLT

VOUT3

RVFB3

VFB3

56.3k

VREF +

0.8V

A5

–

VMAX

SOFT-

START

VC3

–

A6

+

Σ

RAMP

GENERATOR

X3

RQ

Q3

S

OVERVOLTAGE

PROTECTION

M2 M3

VIN

L4

SW3

DS3

CAP3

C4

VOUT3

DISCONNECT

CONTROL

SHDN3

VIN

C6

VOUT1

RFB1

FB1

PTAT BIAS

EN/SS1

EN/SS3

BANDGAP OSCILLATOR

AND LDO

88.5k

FLT

–

A1

+

EN/SS3

FILTER

VC1

AND

VC2 16ms

VC3 DELAY

EN/SS1

VC1

–

A3

+

200mV

–

A7

+

VREF

1.22V

EN/SS1

1μA VIN

C3

Σ

RAMP

GENERATOR

SOFT-

START

FB2

RFB2

VNEG

GND

153k

–

A2

+

SEQUENCING

VC2

–

A4

+

Σ

RAMP

GENERATOR

FLT

R

SQ

X1

RQ

S

Q1

M1

DISCONNECT

CONTROL

SHDN1

IFB3

VIN

RIFB3

100k

FLT

VIN

L1

SW1

DS1

CAP1

C1

VOUT1

X2

RQ

Q2

S

VIN

L2

SW2

3587 F01

C2

DS2

L3

VNEG

C7

Figure 1. Block Diagram

3587fc

8

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