onsemi美国

LP2951CD-3.3G

停产稳压器 - 线性，低压降输出（LDO）稳压器SOIC-8

IC REG LINEAR 3.3V 100MA 8SOIC

LP2951CD-3.3G 是一款 3.3V 低压差线性稳压器，SOIC-8 封装，最大输出电流 100mA，静态电流典型值 75μA，具备过流和过热保护，符合 RoHS 标准。规格书核对

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输出电压3.3 V

输出电流100 mA

输入电压范围4.3 ~ 30 V

压差450 mV

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技术参数

输出电压3.3 V3.267 V (Min) / 3.300 V (Typ) / 3.333 V (Max) at Vin=4.3 V，IO=100 μA，TA=25°C，3.234 V (Min) / 3.366 V (Max) at Vin=4.3 to 30 V，IO=100 μA to 100 mA，TA=-40 to +125°C

输出电流100 mA最大

输入电压范围4.3 ~ 30 V

压差450 mV最大 · 100mA

静态电流75 µA典型 · 93 μA (Typ) / 120 μA (Max) at IO=100 μA，4.0 mA (Typ) / 12 mA (Max) at IO=100 mA

规格书核对参数

16 项

参数	值和测试条件	出处
输出电压	3.3 V (Nominal); 3.267 V (Min) / 3.300 V (Typ) / 3.333 V (Max) at Vin=4.3 V, IO=100 μA, TA=25°C; 3.234 V (Min) / 3.366 V (Max) at Vin=4.3 to 30 V, IO=100 μA to 100 mA, TA=-40 to +125°C
输出电流	100 mA (Max capability mentioned in description); 100 mA (Test condition for max dropout and current limit)
输入电压范围	4.3 V to 30 V (Recommended operating range for 3.3V version based on electrical characteristics test conditions)
压差	30 mV (Typ) / 80 mV (Max) at IO=100 μA; 350 mV (Typ) / 450 mV (Max) at IO=100 mA
静态电流	75 μA (Typical bias current mentioned in features); 93 μA (Typ) / 120 μA (Max) at IO=100 μA; 4.0 mA (Typ) / 12 mA (Max) at IO=100 mA
封装	SOIC-8 (Pb-Free)
工作温度	-40°C to +125°C
等级	Commercial (LP2951 prefix); NCV2951 prefix is AEC-Q100 Qualified
RoHS	Compliant (Pb-Free and RoHS Compliant)
线性调整率	0.08 % (Typ) / 0.20 % (Max) for LP2951C-XX at Vin=VO(nom)+1.0 V to 30 V
负载调整率	0.13 % (Typ) / 0.20 % (Max) for LP2951C-XX at IO=100 μA to 100 mA
限流	220 mA (Typ) / 300 mA (Max) at VO Shorted to Ground
输出噪声	126 μVrms (Typ) at CL=1.0 μF, 10 Hz to 100 kHz; 56 μVrms (Typ) at CL=100 μF, 10 Hz to 100 kHz
热调整率	0.05 %/W (Typ) / 0.20 %/W (Max)
保护功能	Internal Current and Thermal Limiting
ESD 保护	HBM 2000 V Class 2; MM 200 V Class B; CDM 2000 V Class IV

全部参数（22 项）展开收起

电源
Current - Output	100mA
Current - Quiescent (Iq)	120 µA
Current - Supply (Max)	12 mA
Voltage Dropout (Max)	0.45V @ 100mA
Voltage - Input (Max)	30V
Voltage - Output (Max)	-
Voltage - Output (Min/Fixed)	3.3V
交流 / 直流特性
PSRR	-
环境与封装
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Package	Tube
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
其他
Base Product Number	LP2951
Control Features	-
Mfr	onsemi
Number of Regulators	1
Output Configuration	Positive
Output Type	Fixed
Product Status	Obsolete
Protection Features	Over Current, Over Temperature
Series	-

引脚与封装

脚位	名称	功能
1		输出 (Output)
2		检测 (Sense)
3		关断 (Shutdown)
4		地 (GND)
5		误差输出 (Error Output)
6	VO	抽头 (VO Tap)
7		反馈 (Feedback)
8		输入 (Input)

器件图片

技术资料

数据手册数据手册 · 552.5 KB · 2026-10-29

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