Datasheet > 7805SRH

7805SRH

更新时间： 2024-11-01 20:23:07

品牌	Logo	应用领域
村田 - MURATA		/
页数	文件大小	规格书
5页	1391K
描述
DC-DC Regulated Power Supply Module, 1 Output, Hybrid

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7805SRH 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
风险等级：	5.55	Is Samacsys：	N
模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE	效率（主输出）：	95%
高度：	9.3 mm	最大输入电压：	36 V
最小输入电压：	7.5 V	标称输入电压：	12 V
JESD-30 代码：	R-XSMA-T3	最大电网调整率：	0.3%
最大负载调整率：	0.2%	功能数量：	1
输出次数：	1	端子数量：	3
最高工作温度：	70 °C	最低工作温度：	-40 °C
最大输出电流：	0.5 A	最大输出电压：	5.075 V
最小输出电压：	4.925 V	标称输出电压：	5 V
封装主体材料：	UNSPECIFIED	封装形状：	RECTANGULAR
封装形式：	MICROELECTRONIC ASSEMBLY	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	子类别：	Power Supply Modules
表面贴装：	NO	技术：	HYBRID
温度等级：	OTHER	端子形式：	THROUGH-HOLE
端子位置：	SINGLE	处于峰值回流温度下的最长时间：	NOT SPECIFIED
微调/可调输出：	NO	Base Number Matches：	1

7805SRH 数据手册

78xxSR Series

3.3V/5V/12V Outputs High-Efﬁciency

Switching Regulators with LM78xx Pinouts

For full details go to

www.cd4power.com/rohs

DATEL’s 7805SR (5V output), 7812SR (12V output) and 7803SR (3.3V output) step-

down switching regulators are modern drop-in replacements for older, inefﬁcient, LM7805

and LM7812 linear regulators. The 78XXSR's are pin- and size-compatible with industry-

standard TO-220 SIP packages. A 260kHz switching frequency provides for efﬁciencies as

high as 95%. Full-load (up to 0.5A) operation from 9V, 12V, 24V, or 36V supplies at ambient

temperatures up to +70°C requires no heat sinks, no temperature derating, no forced-air

cooling, and no external capacitors.

78SR switching regulators provide many signiﬁcant improvements over their linear

counterparts: lower quiescent current (3mA vs. 5 mA), higher input voltage (40V vs. 32V),

and better output accuracy (±1.5% vs. ±5%). All these features combine to make 78SR

regulators ideal for new or existing LM7805 & LM7812 applications requiring full-load

operation at elevated voltages.

FEATURES

■

3.3V/0.5A, 5V/0.5A or 12V/0.4A outputs; Pin and size-

compatible with LM7805 & LM7812 regulators

Up to 95% efﬁciency–no heat sinks or thermal

derating required!

Two SIP-packages ﬁt existing TO-220 footprints:

Vertical-pin models occupy less than 0.1 square in.

Optional horizontal pins provide 0.350 in. installed

height

■

+7.5-36Vdc operating input range; Low 3mA

quiescent current

Built-in ﬁlter capacitors–no external components

required

TECHNICAL NOTES

1. Input/Output (I/O) Filtering: As shown in the noise and ripple graphs, 78SR switch-

ing regulators exhibit excellent low-noise performance with no external I/O capacitors.

However, if additional noise reduction is required, be sure to use low-ESR capacitors that

are rated for continuous operation (with an additional 20% safety margin) at the highest

system voltages and temperatures. Adding external output capacitors will also improve

the unit’s load-transient response.

–40 to +70°C operation at full load; Short-circuit

protection

■

Excellent load (±0.2%) and line (±0.3%) regulation

Ideal for powering instrumentation from

9V/12V/24V/28V supplies or batteries

■

Can be used with unregulated dc supplies protection

Applications in which 78SR regulators are located more than 24 inches (61cm) from the

input power supply should include an external 47uF/50V (or greater) aluminum electrolytic

capacitor, connected as close as possible to the regulator’s +Vin and GND terminals (pins

1 and 2). An external input capacitor is particularly important if the input voltage is applied

to the regulator via a mechanical switch or relay. Contact bounce at turn-on can produce

large inductive current-spikes, and these current spikes can generate damaging voltage

transients at the regulator’s input terminals.

Ordering Information

DATEL Part No.

Output

Voltage

Output

Current Voltage

Input

2. Input Fusing: 78SR switching regulators are not internally fused. If fusing their input and/

or output terminals is required, use the data shown in the Efficiency Curves as a guide to

selecting an appropriate slow-blow fuse.

Standard Pin Package

7803SR

7805SR

7812SR

Horizontal Pin Package

7803SRH

7805SRH

7812SRH

+3.3Vdc

+5.0Vdc

+12.0Vdc 0.4A

0.5A

+7.5-36Vdc

+15-36Vdc

3. Input-Output Isolation: 78SR regulators’ internal input and output circuits share a

common connection (GND, pin 2); there is no electrical isolation between the INPUT (pin

1) and OUTPUT (pin 3) terminals.

+3.3Vdc

+5.0Vdc

+12.0Vdc 0.4A

0.5A

+7.5-36Vdc

+15-36Vdc

4. Overvoltage Protection: 78SR switching regulators do not provide input or output over-

voltage protection. In the extremely rare situation in which a catastrophic failure occurs,

the output voltage may rise to excessively high levels. If your load must be protected

against all possible overvoltage situations, external voltage-limiting circuitry

must be provided.

5. Operation at 40Vdc: Operating with inputs up to 40Vdc is permissible if, for inputs

between 36 and 40Vdc, the maximum load current is reduced to 0.35A for 7805SR and

7803SR, and to 0.3A for 7812SR. Under no circumstances should the input voltage be

allowed to exceed 45Vdc.

D I G I T A L P A N E L M E T E R S

For updated, full-size data sheets visit: www.cd4power.com

MPM_78SR_G00 Page 1 of 5

12 3 4 5

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与7805SRH相关器件

型号	品牌	获取价格	描述	数据表
7805SRH-C	MURATA	获取价格	3.3V/5V/12V Outputs High-Effi ciency Switching Regulators with LM78xx Pinouts
7805SRH-C		获取价格	3.3V/5V/12V Outputs High-Effi ciency Switching Regulators with LM78xx Pinouts
7806	KEC	获取价格	THREE TERMINAL POSITIVE VOLTAGE REGULATORS
7806	MOTOROLA	获取价格	THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
7806	FAIRCHILD	获取价格	3-Terminal 1A Positive Voltage Regulator
7806		获取价格	Compatt Mk4 MF Directional (Discontinued)
7806	FOSHAN	获取价格	TO-220
7806	HOTTECH	获取价格	TO-252
7806.3601.8	MOLEX	获取价格	Connector Accessory,
7806.3602.8	MOLEX	获取价格	Connector Accessory,

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