Electrical Characteristics（78D24）

(Refer to the test circuits, 0 < TJ < +125°C, IO=350mA, VI=33V, unless otherwise specified,

CI = 0.33μF, CO=0.1μF)

Parameter

Symbol

Conditions

Value

Unit

Min

Typ

Max

Output Voltage

VO

IO= 5mA～350mA

VI＝27～38V

22.8

24

25.2

V

Line Regulation(Note)

△V

O

IO = 200mA

Tj

＝25°C

VI＝27V～38V

100

mV

VI＝28V～38V

50

Load Regulation(Note)

△V

O

Tj

＝25°C

IO= 5mA～500mA

480

mV

IO= 5mA～200mA

240

Quiescent Current

IQ

Tj

＝25°C

8.0

mA

Quiescent Current Change

△I

Q

IO=5mA～350mA

0.5

mA

IO = 200mA，VI＝27～38V

0.8

Output Voltage Drift

△V /△T

IO = 5mA ，Tj = 0

～125°C

-1.2

mV/°C

Output Noise Voltage

VN

f

＝10HZ～100KHZ

170

μV

Ripple Rejection

RR

f = 120Hz, VI = 28～ 38V

70

dB

Dropout Voltage

VD

T j =25°C, IO = 500mA

2

V

Short Circuit Current

ISC

T j =25

, VI= 35V

800

0

mA

Peak Current

IPK

T j

=25°C

900

mA

Notes:

Load and line regulation are specified at constant junction temperature. Change in Vo due to heating

effects must be taken into account separately. Pulse testing with low duty is used.

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