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

Specifications subject to change without notice.

K78LXX-1000

A/3-2012

Page 1 of 3

K78LXX-1000 Series

WIDE INPUT NON-ISOLATED REGULATED

OUTPUT

RoHS

PRODUCT PROGRAM

Input Voltage

Output

Efficiency (%)

Part

Number

Range (VDC)

Voltage

(VDC)

Current

(mA)

Vin (Min)

Vin (Max)

K78L03-1000

4. 75-30

3.3

1000

90

81

K78L05-1000

6.5-30

5.0

1000

93

85

K78L09-1000

12-30

9.0

1000

95

90

K78L12-1000

16-30

12

1000

96

93

OUTPUT SPECIFICATIONS

Item

Test Conditions

Min.

Typ.

Max.

Units

Output voltage accuracy Input voltage range at full load

±2

±3

3.3V output

±0.5

±1.0

Line regulation

5V, 9V,12V output

±0.2

±0.5

Load regulation

Normal input, 10% to 100% load

±0.5

±0.75

%

Ripple + Noise*

20MHz Bandwidth

(refer to figure 3 )

25

35

mVp-p

Thermal Shutdown

160

°C

Switch frequency

Input voltage range at full load

340

410

460

kHz

Output current limit

2000

Quiescent current

5

8

mA

Temperature coefficient -40

°C ~ +85°C

±0.02

%/

°C

Max capacitance load

1000

μF

*Test ripple and noise by

“parallel cable” method.

COMMON SPECIFICATIONS

Item

Test Conditions

Min.

Typ.

Max.

Units

Storage humidity range

95

%

Operating temp. range

Power derating (above 71

°C)

-40

85

Operating case temp.

100

Storage temp. range

-55

125

Lead temperature

1.5mm from case for 10 seconds

300

°C

Cooling

Free Air Convection

Case material

Plastic (UL94-V0)

Storage humidity range

95

%

MTBF

25℃（MIL-HDBK-217F）

2000

k hours

Package weight

3.7

g

FEATURES

● Efficiency up to 96%

●Temperature range: -40°C ~ +85°C

● No heatsink required

● Pin-out compatible with LM78XX linears

● Thermal shutdown

● Low ripple and noise

● SIP package

● Industry standard pinout

● MTBF>2,000,000 hours

APPLICATIONS

The K78LXX-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

K78L05-1000

Produ ct Series

Outpu t Vo lta ge

Outpu t Cu rre nt

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: 86-20-38601850

Fax:86-20-38601272

Http://www.mornsun-power.com