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Specifications subject to change without notice.

K78XX-1000

A/1-2008

Page 1 of 3

K78XX-1000 Series

WIDE INPUT NON-ISOLATED & REGULATED

SINGLE POSITIVE /NEGATIVE OUTPUT

FEATURES

PRODUCT PROGRAM

Input

Output

Efficiency (%)

Part Number

Voltage Range

(VDC)

Voltage

(VDC)

Current

(mA)

Vin (min.)

Vin(max.)

4.75-28

3.3

1000

90

83

K7803-1000

4.75-25

-3.3

-600

80

82

6.5-32

5.0

1000

93

88

K7805-1000

7.0-27

-5.0

-600

85

87

9.0-32

6.5

1000

94

90

K78X6-1000

7.0-25

-6.5

-400

88

90

12-32

9.0

1000

95

92

K7809-1000

7.0-23

-9.0

-400

89

91

16-32

12

1000

96

94

K7812-1000

7.0-20

-12

-300

89

91

OUTPUT SPECIFICATIONS

Item

Test conditions

Min

Typ

Max

Units

Output Voltage accuracy

100% full load

±2

±3

Line regulation

Vin=min. to max. at full load

±0.2

±0.4

Load regulation

10% to 100% load

±0.4

±0.6

%

Ripple+Noise*

20MHZ bandwidth

25

35

mVp-p

Short Circuit Input Power

0.5

1.8

w

Short circuit protection

Continuous, automatic recovery

Thermal Shutdown

Internal IC junction

150

Switching frequency

100% full load

280

330

450

KHz

Output Current Limit

2000

mA

Positive Output

5

8

Quiescent current

Negative Output

7

13

mA

Temperature coefficient

-40

°C to +85 °C ambient

0.02

%/

°C

Max capacitance load

1000

μF

*Test ripple and noise by

“parallel cable” method.

COMMON SPECIFICATION

Item

Test conditions

Min

Typ

Max

Units

Operating Temperature

-40

85

Operating Case temp.

100

Storage Temperature

-55

125

Lead Temperature

1.5mm from case for 10 seconds

300

Cooling

Free Air Convection

Case Material

Plastic (UL94-V0)

Storage Humidity

95

%

MTBF

2000

K hours

Package Weight

3.7

g

°C to +85°C

into a negative voltage

output voltage for higher output voltages

in negative application

APPLICATIONS

The

K78xx-1000

Series

high

efficiency

switching regulators are ideally suited to replace

78xx linear regulators and are pin compatible.

The efficiency of up to 96% means that very little

energy is wasted as heat so there is no need for

any heat sinks with their additional space and

mounting costs.

MODEL SELECTION

K78XX-1000

Product Series

Output Vol tage

Output Curre nt

MORNSUN Science& Technology co.,Ltd.

Address: 2th floor 6th building, Huangzhou Industrial

District,Guangzhou,China

Tel: 86-20-38601850

Fax:86-20-38601272

Http://www.mornsun-power.com

Note:

unless otherwise specified.

2. Only typical models listed. If you need other model, please confirm the power, input voltage and output

voltage, then phone us.