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

Specifications subject to change without notice.

K78XX-2000(L)

A/3-2012

Page 1 of 4

K78XX-2000(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.)

K7801-2000(L)

12

4.75-18

1.5

2000

79

76

K78X2-2000(L)

12

4.75-18

1.8

2000

81

79

K7802-2000(L)

12

4.75-18

2.5

2000

85

83

K7803-2000(L)

12

4.75-18

3.3

2000

87

86

K7805-2000(L)

12

7-18

5

2000

91

88

K78X6-2000(L)

12

8.5-18

6.5

2000

92

91

Add suffix

“L” for 90° bend pins, for example: K7805-2000L.

OUTPUT SPECIFICATIONS

Item

Test conditions

Min.

Typ.

Max.

Units

Output voltage accuracy

100% full load, input voltage

range

±2

±3

Line regulation

Vin=min. to max, at full load

±0.5

±0.75

Load regulation

10% to 100% load

±0.5

±1.0

%

Ripple & Noise*

20MHz bandwidth

(refer to figure 6)

25

45

mVp-p

Short circuit input power

0.5

1.8

W

Short circuit protection

Continuous, auto-recovery

Thermal shutdown

Internal IC junction

150

°C

Output current limit

5000

mA

Switching frequency

Full load, input voltage range

300

340

380

KHz

Quiescent current

5

10

mA

Temperature coefficient -40

°C ~ +85°C ambient

±0.03

%/

°C

Max capacitance load

1000

μF

*Test ripple and noise by

“parallel cable” method.

COMMON SPECIFICATIONS

Operating temp. range

-40~+85 ℃(above 71

°C power derating)

Operating case temp.

+100 ℃(max)

Storage temp. range

-55~+125 ℃

Cooling

Free air convection

Lead temperature**

300 ℃(max)

Storage humidity range

≤ 95%

Case material

Plastic(UL94-V0)

MTBF

> 2000k hours (25℃,MIL-HDBK-217F)

Weight

4.0g

Conducted emissions (Refer to Figure 5)

EN55022

CLASS B

Radiated emissions

EN55022

CLASS B

ESD

EN61000-4-2

Level 3

6kV/8kV

perf. Criteria B

● Efficiency up to 92%,No heatsink required

● 2A large current output

● Operating temperature : -40°C ~ +85°C

● Short circuit protection, thermal shutdown

● Low ripple and noise

● Micro miniature SIP package, meet

UL94-V0 requirement

● Ultra low power loss

● Industry standard pinout

● Pin-out compatible with LM78XX Linear

● MTBE>2000,000Hours

APPLICATIONS

Upgraded K78xx-2000(L) series switching

regulators are ideal replacement for K78xx

linear regulators and LDOs. The efficiency of

up to 92% 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. They are widely used in

industrial control, instrumentation, and electric

power applications.

MODEL SELECTION

K7805-2000

P roduct S eries

O utput Voltage

O utput C urrent

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

**1.5mm from case for 10 seconds