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MB39A110

4-ch DC/DC Converter IC with Synchronous Rectification

Fujitsu 

MB39A110

■ ELECTRICAL CHARACTERISTICS

Parameter

Output voltage

Input stability

Load stability

Temperature

stability

Output current

at short-circuit

Threshold

voltage

Hysteresis

width

Sym-

bol

VREF1

VREF2

VREF3

Line

Load

∆VREF

/VREF

IOS

VTH

VH

Reset voltage

Threshold

voltage

Input source

current

VRST

VTH

ICSCP

Pin No

11

11

11

11

11

11

11

33

33

33

15

15

(VCC = VCCO = 7 V, Ta = +25 °C)

Conditions

Value

Unit

Min Typ Max

VREF = 0 mA

1.98 2.00 2.02 V

VCC = 2.5 V to 11 V

1.975 2.000 2.025 V

VREF = 0 mA to −1 mA 1.975 2.000 2.025 V

VCC = 2.5 V to 11 V

⎯ 2* ⎯ mV

VREF = 0 mA to −1 mA ⎯ 2* ⎯ mV

Ta = 0 °C to +85 °C

⎯ 0.20* ⎯ %

VREF = 0 V

⎯ −300* ⎯ mA

VCC =

1.7 1.8 1.9 V

⎯

0.05 0.1 ⎯ V

VREF =

1.5 1.7 1.85 V

⎯

0.65 0.70 0.75 V

⎯

−1.4 −1.0 −0.6 µA

Oscillation

frequency

Frequency

input stability

Frequency

temperature

stability

fOSC1 26, 27, 30 to 33 CT = 100 pF, RT = 6.8 kΩ 0.97 1.02 1.07 MHz

fOSC2

∆fOSC/

fOSC

26, 27, 30 to 33

CT = 100 pF, RT = 6.8 kΩ,

VCC = 2.5 V to 11 V

26, 27, 30 to 33

CT = 100 pF, RT = 6.8 kΩ,

VCC = 2.5 V to 11 V

0.964

⎯

1.02

1.0*

1.076 MHz

⎯%

∆fOSC/

fOSC

26, 27, 30 to 33

CT = 100 pF, RT = 6.8 kΩ,

Ta = 0 °C to +85 °C

⎯

1.0*

⎯

%

Charge current ICS 1, 19, 20, 38 CS1 to CS4 = 0 V

−1.4 −1.0 −0.6 µA

* : Standard design value

(Continued)

7

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