The copyright and authority for the interpretation of the products are reserved by MORNSUN

Specifications subject to change without notice.

K78XX-1000(L)

B/1-2011

Page 1 of 4

K78XX-1000(L) Series

WIDE INPUT NON-ISOLATED & REGULATED

SINGLE OUTPUT

RoHS

FEATURES

Product Program

Input Voltage(VDC)

Output

Efficiency (%)(Typ)

Part Number

Nominal

Range

Voltage

(VDC)

Current

(mA)

Vin

(min.)

Vin

(max.)

K7801-1000(L)

12

4.75-26

1.5

1000

80

71

K78X2-1000(L)

12

4.75-26

1.8

1000

83

74

K7802-1000(L)

12

4.75-28

2.5

1000

88

80

K7803-1000(L)

24

4.75~28

3.3

1000

90

83

K7805-1000(L)

24

6.5~32

5.0

1000

93

88

K78X6-1000(L)

24

9.0~32

6.5

1000

94

90

K7809-1000(L)

24

12~32

9.0

1000

95

92

K7812-1000(L)

24

16~32

12

1000

96

94

K7815-1000(L)

24

20~32

15

1000

97

94

Add suffix

“L” for 90° bend pins, for example: K7805-1000L.

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

(refer to figure 3)

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

°C

Switching frequency

100% full load

280

330

450

KHz

Vout:1.5V~3.3V

3000

Output current limit

Vin= min. to max.

(at full load)

Vout:5V~15V

2000

mA

Quiescent current

5

8

mA

Temperature coefficient

-40

°C ~ +85°C ambient

±0.02 %/°C

Max capacitance load

1000

μF

* K78X2-1000 is

±0.75%(Max), ** K7801-1000 is 4W(Max).

COMMON SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Storage humidity

95

%

Operating temperature

Power derating (above 71

°C)

-40

85

Operating case temp.

100

Storage temperature

-55

125

Lead temperature

1.5mm from case for 10 seconds

300

°C

Cooling

Free air convection

Case material

Plastic (UL94-V0)

MTBF

25℃（MIL-HDBK-217F）

2000

k hours

Weight

3.7

g

°C ~ +85°C

APPLICATIONS

The

K78xx-1000(L)

series

high

efficiency

switching regulators are ideally suited to replace

78xx linear regulators and are pin compatible.

The efficiency of up to 97% means that very little

energy is wasted as heat so there is no need for

any heatsinks with their additional space and

mounting costs.

MODEL SELECTION

K7805-1000

Product Series

Output Voltage

Output Current

MORNSUN Science & Technology Co.,Ltd.

Address: No. 5, Kehui St. 1, Kehui development

center, Science Ave., Guangzhou Science City,

Luogang district, Guangzhou,P.R.China.

Tel: 86-20-28203030

Fax:86-20-28203068

Http://www.mornsun-power.com