MB3825APFV データシートの表示（PDF） - Fujitsu

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MB3825APFV

6-ch DC/DC Converter IC With Synchronous Rectifier

Fujitsu 

MB3825A

s ELECTRICAL CHARACTERISTICS

(VCC = VCC (O) = +6 V, Ta = +25°C)

Parameter

Symbol Pin No.

Conditions

Value

Unit

Min Typ Max

Reference voltage

VREF

27



1.485 1.500 1.515 V

Reference

voltage

block

Output voltage

temperature stability

Input stability

Load stability

∆VREF

/VREF

Line

Load

27 Ta = −30 °C to +85 °C  0.5*  %

27 VCC = 2.5 V to 12 V



2

10 mV

27 VREF = 0 mA to −1 mA 

2

10 mV

Short-circuit output

current

IOS

27 VREF = 2 V

−10 −6 −1 mA

Under

voltage

lockout

protection

circuit

block

(U.V.L.O)

Threshold voltage

Hysteresis width

Reset voltage

VTH

VH

VRST

46

VCC =

46



46



 2.1  V

 0.1  V

1.8 2.0  V

Soft-start Input standby voltage VSTB

26

block

Charge current

ICS

26



 50 100 mV



−1.4 −1.0 −0.6 µA

Short

Threshold voltage

VTH

23

circuit

Input standby voltage VSTB

23

detection Input latch voltage

VI

23

block

Input source current

ICSCP

23



0.65 0.70 0.75 V



 50 100 mV



 50 100 mV



−1.4 −1.0 −0.6 µA

Oscillator frequency

fOSC

46, 50,

56, 57,

64, 4

CT = 100 pF,

RT = 39 kΩ

450 500 550 kHz

Triangular

wave

oscillator

block

Frequency stability for

voltage

∆f/fdv

46, 50,

56, 57, VCC = 2.5 V to 12 V

64, 4



1

10 %

Frequency stability for

temperature

∆f/fdt

46, 50,

56, 57, Ta = −30 °C to +85 °C

64, 4



1*

%

* : Standard design value.

(Continued)

11

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