K78L12-500R3 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Power/power management> DC - DC power supply module> K78L12-500R3

K78L12-500R3: DescriptionNumber of voltage output groups: 1 Maximum input voltage: 36V or 24V Output voltage: 12V or -12V Output current (maximum value/full load): 500mA or -150mA Wide voltage input High efficiency and cost-effective No need for heat dissipation Short circuit protection Supports negative voltage; CategoryPower/power management DC - DC power supply module; File Size2MB，4 Pages; ManufacturerMORNSUN; Websitehttp://www.mornsun-power.com

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K78L12-500R3 Overview

Number of voltage output groups: 1 Maximum input voltage: 36V or 24V Output voltage: 12V or -12V Output current (maximum value/full load): 500mA or -150mA Wide voltage input High efficiency and cost-effective No need for heat dissipation Short circuit protection Supports negative voltage

K78L12-500R3 Parametric

Parameter Name	Attribute value
Power module type	Linear Regulator Replacement
Number of voltage output groups	1
Conversion efficiency	94% or 84% - Minimum(Vin)
Minimum input voltage	15V or 8V
Maximum input voltage	36V or 24V
Isolation voltage	-
Total output power	-
The output voltage	12V or -12V
Output current (max/full load)	500mA or -150mA

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DC/DC

模块电源

K78Lxx-500R3

系列

½电压输入，非隔离稳压单输出

产品特点



效率高达

95%

空½½输入电流½至

0.2mA

工½温度：-40℃~

+85℃

支持负输出

短路保护

引脚与

LM78xx

系列兼容

通过

UL60950，EN60950

认证

RoHS

K78Lxx-500R3

系列是高效率的经济型开关稳压器，是

LM78xx

系列三端线性稳压器的理想替代品。它具有效率高，空½½功耗½，

短路保护功½等特性，同时在½用中无需外加散热片，可支持负输出。产品可广泛应用于工控、电力、仪表等多个行业。

选型表

输入电压(VDC)

认证

产品型号

标称值

(范围值)

(4.75-36)

(6.5-36)

(7-31)

(15-36)

(8-24)

(19-36)

(8-21)

输出

输出电压

(VDC)

3.3

-5

-12

-15

效率(%/Typ.)

最小(V

n)/最大(V

@满½½

86/80

90/84

80/81

94/91

84/85

95/93

85/87

最大输出电流

(mA)

500

-300

500

-150

500

-150

最大容性负½½

(µF)

680

330

680

330

680

330

K78L03-500R3

K78L05-500R3

UL/CE

K78L12-500R3

K78L15-500R3

注：½输入电压超过

30VDC

时，输入端需外接

22uF/50V

的电解电容，以防电压尖峰造成模块损坏。

输入特性

项目

空½½输入电流

反接输入

输入滤波器类型

工½条件

正输出

Min.

Typ.

0.2

禁止

Max.

1.5

单½

电容滤波

输出特性

项目

输出电压精度

线性调节率

负½½调节率

纹波&噪声*

温度漂移系数

瞬态响应偏差

瞬态恢复时间

短路保护

工½条件

满½½，输入电压范围

标称输入电压，10%

-100%负½½

20MHz

带½，标称输入电压，10%

-100%负½½

工½温度-40℃

~ +85℃

标称输入电压，25%负½½阶跃变化

标称输入电压

K78L03-500R3

其他型号

Min.

Typ.

±2

±0.2

±0.4

0.2

Max.

±4

±3

±0.4

±0.6

±0.03

250

单½

mVp-p

%/℃

可持续，自恢复

注：*1. 纹波和噪声的测试方法采用平行线测试法，具½操½方法参见《DC-DC 模块电源应用指南》

；

*2.

在

10%以下负½½时，3.3/5V

输出的纹波&噪声最大值为

150mVp-p，12/15V

输出的纹波&噪声最大值为

2%Vo。

2015.12.15-A/1

第

页共

页

该版权及产品最终解释权½广州金升阳科技有限公司所有

K78L12-500R3 Related Products

	K78L12-500R3	K78L03-500R3	K78L05-500R3
Description	Number of voltage output groups: 1 Maximum input voltage: 36V or 24V Output voltage: 12V or -12V Output current (maximum value/full load): 500mA or -150mA Wide voltage input High efficiency and cost-effective No need for heat dissipation Short circuit protection Supports negative voltage	Number of voltage output groups: 1 Maximum input voltage: 36V Output voltage: 3.3V Output current (maximum value/full load): 500mA Wide voltage input High efficiency and cost-effective No need for heat dissipation Short circuit protection Supports negative voltage	Number of voltage output groups: 1 Maximum input voltage: 36V or 31V Output voltage: 5V or -5V Output current (maximum value/full load): 500mA or -300mA Wide voltage input High efficiency and cost-effective No need for heat dissipation Short circuit protection Supports negative voltage
Power module type	Linear Regulator Replacement	Linear Regulator Replacement	Linear Regulator Replacement
Number of voltage output groups	1	1	1
Conversion efficiency	94% or 84% - Minimum(Vin)	86% - Minimum (Vin)	90% or 80% - Minimum (Vin)
Minimum input voltage	15V or 8V	4.75V	6.5V or 7V
Maximum input voltage	36V or 24V	36V	36V or 31V
The output voltage	12V or -12V	3.3V	5V or -5V
Output current (max/full load)	500mA or -150mA	500mA	500mA or -300mA

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