31151 データシートの表示（PDF） - Linear Technology

部品番号

コンポーネント説明

メーカー

31151

40V, 2A Synchronous Buck-Boost DC/DC Converter

Linear Technology 

LTC3115-1

Typical Performance Characteristics (TA = 25°C unless otherwise specified)

Die Temperature Rise vs Load

Current, VOUT = 12V, fSW = 750kHz

80

VIN = 36V

70

VIN = 24V

VIN = 12V

60

VIN = 6V

50

Load Transient (0A to 1A),

VIN = 24V, VOUT = 5V

LOAD

CURRENT

(1A/DIV)

VOUT

(200mV/DIV)

40

30

20

10

0

0

STANDARD DEMO PCB

L = 15µH MSS1048

0.5

1

1.5

2

LOAD CURRENT (A)

31151 G51

INDUCTOR

CURRENT

(1A/DIV)

FRONT PAGE

APPLICATION

200µs/DIV

Load Transient (0A to 1A),

VIN = 3.6V, VOUT = 5V

LOAD

CURRENT

(1A/DIV)

VOUT

(200mV/DIV)

31151 G39

INDUCTOR

CURRENT

(2A/DIV)

FRONT PAGE

APPLICATION

200µs/DIV

31151 G40

Output Voltage Ripple in

Burst Mode Operation,

VIN = 24V, VOUT = 5V

Soft-Start Waveforms

Output Voltage Ripple in PWM

Mode, VIN = 24V, VOUT = 5V

VOUT

(50mV/DIV)

INDUCTOR

CURRENT

(0.5A/DIV)

L = 15µH

COUT = 22µF

ILOAD = 25mA

20µs/DIV

VRUN

(5V/DIV)

VCC

(2V/DIV)

31151 G41

VOUT

(2V/DIV)

INDUCTOR

CURRENT

(1A/DIV) FRONT PAGE

APPLICATION

2ms/DIV

INDUCTOR

CURRENT

(100mA/DIV)

VOUT

(5mV/DIV)

31151 G42

L = 22µH

COUT = 22µF

ILOAD = 2A

fSW = 750kHz

1µs/DIV

31151 G43

Burst Mode Operation to PWM

Mode Output Voltage Transient

Phase-Locked Loop Acquisition,

VIN = 24V 1.2MHz Clock

Phase-Locked Loop Release,

VIN = 24V, 1.2MHz Clock

VPWM/SYNC

(5V/DIV)

VPWM/SYNC

(5V/DIV)

VPWM/SYNC

(5V/DIV)

VOUT

(200mV/DIV)

INDUCTOR

CURRENT

(1A/DIV)

FRONT PAGE

APPLICATION

500µs/DIV

VOUT

(200mV/DIV)

INDUCTOR

CURRENT

(1A/DIV)

31151 G44

FRONT PAGE

APPLICATION

50µs/DIV

VOUT

(200mV/DIV)

INDUCTOR

CURRENT

(1A/DIV)

31151 G45

FRONT PAGE

APPLICATION

50µs/DIV

31151 G46

For more information www.linear.com/LTC3115-1

31151fb

9

Share Link: