LP2951C データシートの表示（PDF） - ON Semiconductor

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LP2951C

Micropower Voltage Regulators

ON Semiconductor 

LP2950

ELECTRICAL CHARACTERISTICS (continued) (Vin = VO + 1.0 V, IO = 100 µA, CO = 1.0 µF, TJ = 25°C [Note 1], unless

otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

Line Regulation (Vin = VO(nom) +1.0 V to 30 V) [Note 2]

LP2950C–XX/LP2951C/LP2951C–XX

LP2950AC–XX/LP2951AC/LP2951AC–XX

Regline

–

–

%

0.08

0.20

0.04

0.10

Load Regulation (IO = 100 µA to 100 mA)

LP2950C–XX/LP2951C/LP2951C–XX

LP2950AC–XX/LP2951AC/LP2951AC–XX

Regload

–

–

%

0.13

0.20

0.05

0.10

Dropout Voltage

IO = 100 µA

IO = 100 mA

Supply Bias Current

IO = 100 µA

IO = 100 mA

Dropout Supply Bias Current (Vin = VO(nom) – 0.5 V,

IO = 100 µA) [Note 2]

VI – VO

–

–

ICC

–

–

ICCdropout

–

mV

30

80

350

450

93

120

µA

4.0

12

mA

110

170

µA

Current Limit (VO Shorted to Ground)

Thermal Regulation

Output Noise Voltage (10 Hz to 100 kHz) [Note 3]

CL = 1.0 µF

CL = 100 µF

LP2951A/LP2951AC ONLY

ILimit

–

Regthermal

–

Vn

–

–

220

300

mA

0.05

0.20

%/W

µVrms

126

–

56

–

Reference Voltage (TJ = 25°C)

LP2951C/LP2951C–XX

LP2951AC/LP2951AC–XX

Vref

V

1.210

1.235

1.260

1.220

1.235

1.250

Reference Voltage (TJ = – 40 to +125°C)

LP2951C/LP2951C–XX

LP2951AC/LP2951AC–XX

Vref

V

1.200

–

1.270

1.200

–

1.260

Reference Voltage (TJ = – 40 to +125°C)

IO = 100 µA to 100 mA, Vin = 23 to 30 V

LP2951C/LP2951C–XX

LP2951AC/LP2951AC–XX

Vref

V

1.185

–

1.285

1.190

–

1.270

Feedback Pin Bias Current

ERROR COMPARATOR

IFB

–

15

40

nA

Output Leakage Current (VOH = 30 V)

Output Low Voltage (Vin = 4.5 V, IOL = 400 µA)

Upper Threshold Voltage (Vin = 6.0 V)

Lower Threshold Voltage (Vin = 6.0 V)

Hysteresis (Vin = 6.0 V)

Ilkg

–

VOL

–

Vthu

40

Vthl

–

Vhy

–

0.01

1.0

µA

150

250

mV

45

–

mV

60

95

mV

15

–

mV

SHUTDOWN INPUT

Input Logic Voltage

Logic “0” (Regulator “On”)

Logic “1” (Regulator “Off”)

Vshtdn

0

V

–

0.7

2.0

–

30

Shutdown Pin Input Current

Vshtdn = 2.4 V

Vshtdn = 30 V

Ishtdn

–

35

–

450

Regulator Output Current in Shutdown Mode

Ioff

–

3.0

(Vin = 30 V, Vshtdn = 2.0 V, VO = 0, Pin 6 Connected to Pin 7)

NOTES: 1. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

2. VO(nom) is the part number voltage option.

3. Noise tests on the LP2951 are made with a 0.01 µF capacitor connected across Pins 7 and 1.

µA

50

600

10

µA

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