Datasheet > LM2940CT-9.0/NOPB

LM2940CT-9.0/NOPB

更新时间： 2024-11-18 20:19:43

品牌	Logo	应用领域
美国国家半导体 - NSC		局域网输出元件调节器
页数	文件大小	规格书
20页	416K
描述
IC VREG 9 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSFM3, LEAD FREE, PLASTIC, TO-220, 3 PIN, Fixed Positive Single Output LDO Regulator

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替代型号

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LM2940CT-9.0/NOPB 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	, SIP3,.1TB	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.12	可调性：	FIXED
最大回动电压 1：	1 V	标称回动电压 1：	0.5 V
最大绝对输入电压：	45 V	最大输入电压：	26 V
最小输入电压：	10.5 V	JESD-30 代码：	R-PSFM-T3
JESD-609代码：	e3	最大电网调整率：	0.09%
最大负载调整率：	0.15%	湿度敏感等级：	1
功能数量：	1	输出次数：	1
端子数量：	3	工作温度TJ-Max：	125 °C
工作温度TJ-Min：		最大输出电流 1：	1 A
最大输出电压 1：	9.45 V	最小输出电压 1：	8.55 V
标称输出电压 1：	9 V	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SIP3,.1TB	封装形状：	RECTANGULAR
封装形式：	FLANGE MOUNT	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
子类别：	Other Regulators	表面贴装：	NO
技术：	BIPOLAR	端子面层：	Matte Tin (Sn)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	SINGLE	处于峰值回流温度下的最长时间：	40
最大电压容差：	5%	Base Number Matches：	1

LM2940CT-9.0/NOPB 数据手册

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January 2007

LM2940/LM2940C

1A Low Dropout Regulator

General Description

age, the regulator will automatically shut down to protect both

the internal circuits and the load. The LM2940/LM2940C can-

not be harmed by temporary mirror-image insertion. Familiar

regulator features such as short circuit and thermal overload

protection are also provided.

The LM2940/LM2940C positive voltage regulator features the

ability to source 1A of output current with a dropout voltage of

typically 0.5V and a maximum of 1V over the entire temper-

ature range. Furthermore, a quiescent current reduction cir-

cuit has been included which reduces the ground current

when the differential between the input voltage and the output

voltage exceeds approximately 3V. The quiescent current

with 1A of output current and an input-output differential of 5V

is therefore only 30 mA. Higher quiescent currents only exist

when the regulator is in the dropout mode (V_IN− V_OUT≤ 3V).

Designed also for vehicular applications, the LM2940/

LM2940C and all regulated circuitry are protected from re-

verse battery installations or 2-battery jumps. During line

transients, such as load dump when the input voltage can

momentarily exceed the specified maximum operating volt-

Features

Dropout voltage typically 0.5V @I_O= 1A

■

Output current in excess of 1A

Output voltage trimmed before assembly

Reverse battery protection

Internal short circuit current limit

Mirror image insertion protection

P⁺Product Enhancement tested

Typical Application

882203

*Required if regulator is located far from power supply filter.

**C_OUTmust be at least 22 μF to maintain stability. May be increased without bound to maintain regulation during transients. Locate as close as possible to

the regulator. This capacitor must be rated over the same operating temperature range as the regulator and the ESR is critical; see curve.

Ordering Information

Temp

Range

Output Voltage

Package

5.0

8.0

–

9.0

–

LM2940CT-5.0

LM2940CS-5.0

LM2940CT-9.0

LM2940CS-9.0

LM2940CT-12 LM2940CT-15 TO-220

LM2940CS-12 LM2940CS-15

0°C

–

≤ T_J≤

125°C

TO-263

LM2940CSX

-5.0

LM2940CSX

-9.0

LM2940CSX

-12

LM2940CSX

-15

–

LLP

1k Units

Tape and

Reel

LM2940LD-5.0 LM2940LD-8.0 LM2940LD-9.0 LM2940LD-10 LM2940LD-12 LM2940LD-15

−40°C

≤ T_J≤

125°C

LLP

4.5k

Units

Tape and

Reel

LM2940LDX

-5.0

LM2940LDX

-8.0

LM2940LDX

-9.0

LM2940LDX

-10

LM2940LDX

-12

LM2940LDX

-15

LM2940T-5.0

LM2940S-5.0

LM2940T-8.0

LM2940S-8.0

LM2940T-9.0

LM2940S-9.0

LM2940T-10

LM2940S-10

LM2940T-12

LM2940S-12

TO-220

–

−40°C

≤ T_J≤

125°C

TO-263

LM2940SX-5.0 LM2940SX-8.0 LM2940SX-9.0 LM2940SX-10 LM2940SX-12

8822

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LM2940CT-9.0/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM2940CT-9.0	NSC	功能相似	1A Low Dropout Regulator

与LM2940CT-9.0/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM2940G-10-AA3-R	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-AA3-T	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-TA3-R	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-TA3-T	UTC	获取价格	Fixed Positive LDO Regulator, 10V, 0.8V Dropout, HALOGEN FREE, TO-220, 3 PIN
LM2940G-10-TF3-R	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-TF3-T	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-TN3-R	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-TN3-T	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-TQ2-R	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR
LM2940G-10-TQ2-T	UTC	获取价格	1A LOW-DROPOUT POSITIVE VOLTAGE REGULATOR

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