LT3495BEDDB(RevA) Ver la hoja de datos (PDF) - Linear Technology

Número de pieza

componentes Descripción

Fabricante

LT3495BEDDB
(Rev.:RevA)

650mA/350mA Micropower Low Noise Boost Converter with Output Disconnect

Linear Technology 

LT3495/LT3495B/

LT3495-1/LT3495B-1

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.

Line Regulation

0.30

0.25

0.20

0.15

0.10

0.05

0

0

4

8

12

16

VCC VOLTAGE (V)

3495 G19

Output Disconnect PMOS Current

vs CAP to VOUT Voltage Difference

600

500

400

AFTER START-UP

300

200

IN START-UP

100

IN SHUTDOWN

0

–100

0

2

4

6

8 10 12

CAP TO VOUT VOLTAGE DIFFERENCE (V)

3495 G20

LT3495 Start-Up Waveforms

SHDN VOLTAGE

5V/DIV

INDUCTOR CURRENT

500mA/DIV

CAP VOLTAGE

5V/DIV

VOUT VOLTAGE

5V/DIV

50µs/DIV

VCC = 3.6V

VOUT = 16V

FIGURE 7 CIRCUIT

3495 G21

LT3495 Transient Response

20mA → 60mA → 20mA LOAD PULSE

VOUT VOLTAGE

200mV/DIV

AC COUPLED

INDUCTOR CURRENT

500mA/DIV

LT3495-1 Transient Response

10mA → 30mA → 10mA LOAD PULSE

VOUT VOLTAGE

200mV/DIV

AC COUPLED

INDUCTOR CURRENT

200mA/DIV

LOAD CURRENT

20mA/DIV

20µs/DIV

VCC = 3.6V

VOUT = 16V

FIGURE 7 CIRCUIT

6

3495 G22

LOAD CURRENT

20mA/DIV

20µs/DIV

VCC = 3.6V

VOUT = 16V

FIGURE 9 CIRCUIT

3495 G23

3495b1b1fa

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