Datasheet > K78L03-500R3

K78L03-500R3

更新时间： 2025-07-26 01:19:03

品牌	Logo	应用领域
金升阳 - MORNSUN		/
页数	文件大小	规格书
4页	1889K
描述
Support the negative output

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中文翻译

获取价格

数据手册

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K78L03-500R3 数据手册

DC/DC Converter

K78Lxx-500R3 Series

Wide input voltage , non-isolated & regulated single

output

FEATURES

 High efficiency up to 95%

 No-load input current as low as 0.2mA

 Operating temperature range: -40℃ to +85℃

 Support the negative output

 Output short circuit protection

 Pin-out compatible with LM78XX linear regulators

 UL60950, EN60950 approval

RoHS

K78Lxx-500R3 series are high efficiency switching regulators and ideal substitutes of LM78xx series three-terminal linear regulators. The

product is featured with high efficiency, low loss, short circuit protection, support the negative output and no heat sink requirement. They

are widely used in industrial control, instrumentation, and electric power applications.

Selection Guide

Input Voltage (VDC)

Output

Max. Output Current

Efficiency (%/Typ.)

(Min. Vin)/ (Max. Vin) Capacitive

Max.

Part

Certification

Nominal

(Range)

Output Voltage

(VDC)

Number

@Full Load

86/80

Load(µF)

680

(mA)

K78L03-500R3

K78L05-500R3

3.3

5.0

-5.0

500

(4.75-36)

(6.5-36)

(7-31)

(15-36)

(8-24)

(19-36)

680

500

-300

500

90/84

80/81

94/91

84/85

95/93

85/87

330

680

330

680

330

UL/CE

K78L12-500R3

K78L15-500R3

-12

-150

500

-15

-150

(8-21)

Note:For input voltage higher than 30 VDC, a 22uF/50V input capacitor is required.

Input Specifications

Item

Operating Conditions

Positive output

Min.

Typ.

0.2

Max.

1.5

Unit

No-load Input Current

Reverse Polarity Input

Input Filter

Forbidden

Capacitor filter

Output Specifications

Item

Operating Conditions

Min.

Typ.

±2

Max.

±4

Unit

K78L03-500R3

Others

Output Voltage Accuracy

Full load, input voltage range

±2

±0.2

±0.4

±3

±0.4

±0.6

Line Regulation

Full load, input voltage range

Nominal input ,10% -100% load

Load Regulation

Ripple & Noise*

20MHz bandwidth, nominal input, 10% -100% load

mVp-p

%/℃

Operating temperature -40℃～ +85℃

Temperature Drift Coefficient

Transient response deviation

Transient recovery time

Output short circuit protection

±0.03

250

Nominal input, 25% load step change

Nominal input

0.2

Continuous, self-recovery

Note: *1. Ripple and noise tested with “parallel cable” method, please refer to DC-DC Converter Application Notes for specific operation methods;

*2. With the load lower than 10%, the maximum ripple and noise of 3.3V/5V output products will be 150mVp-p, 12V/15V output products will be 2%Vo.

2015.12.15-A/1

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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

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与K78L03-500R3相关器件

型号	品牌	获取价格	描述	数据表
K78L05-1000	MORNSUN	获取价格	WIDE INPUT NON-ISOLATED REGULATED OUTPUT
K78L05-1000R2	MORNSUN	获取价格	WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT
K78L05-1000R3	MORNSUN	获取价格	Support the negative output
K78L05-500	MORNSUN	获取价格	WIDE INPUT NON-ISOLATED REGULATED OUTPUT
K78L05-500R2	MORNSUN	获取价格	WIDE INPUT NON-ISOLATED & REGULATED SINGLE OUTPUT
K78L05-500R3	MORNSUN	获取价格	Support the negative output
K78L09-1000	MORNSUN	获取价格	WIDE INPUT NON-ISOLATED REGULATED OUTPUT
K78L09-500	MORNSUN	获取价格	WIDE INPUT NON-ISOLATED REGULATED OUTPUT
K78L12-1000R3	MORNSUN	获取价格	Support the negative output
K78L12-500	MORNSUN	获取价格	DC-DC Regulated Power Supply Module

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