MB39C031 datasheet(13/69 Pages) CYPRESS

номер детали	MB39C031

подробное описание детали	2ch Buck DC/DC Converter 1ch LDO with I2C Interface and SW FET

PDF	69 Pages

Scroll/Zoom	100%

производитель	CYPRESS [Cypress Semiconductor]

домашняя страница	http://www.cypress.com

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13 / 69 page

Document Number: 002-08407 Rev. *B

Page 13 of 69

MB39C031

DD1, DD2

(Ta=+25°C, VCC=PVCC1, PVCC2, L=3.6V)

Parameter

Symbol

Condition

Value

Unit

Min

Typ

Max

DC/DC

Converter Block

[DD1]

Output voltage

VOUT

Output voltage setting: 1.2V

IOUT=-10mA

1.186

1.20

1.214

Input stability

VLINE

IOUT=-10mA, VCC=2.5V to

5.5V

-5

Load stability

VLOAD

IOUT=-1mA to -1400mA

(when in Fixed PWM mode)

-10

IOUT=-1mA to -1400mA

(when in PFM/PWM mode)

-10

+15

IN1 pin input impedance

RIN

IN1 pin=1.5V

output voltage setting:

1.2V

400

kΩ

SW PMOS-Tr ON

resistance

RPMOS

LX1 pin=-30mA

0.12*

SW NMOS-Tr ON

resistance

RNMOS

LX1 pin= 30mA

0.09*

SW PMOS-Tr leak

current

ILEAK

LX1 pin=0V

-1

μA

SW NMOS-Tr leak

current

ILEAK

LX1 pin=3.6V

μA

Overcurrent protection

value

ILIMIT

L=1.5

μH

2000

PFM/PWM reshuffling

electric current

IPFM

L=1.5

μH

40*

Discharge resistor

RDIS

kΩ

Soft-start time

tSS

Preset value

0.8

0.9

1.0

Switching frequency

fOSC

2.7

3.0

3.3

MHz

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