LP2951CDMR2 datasheet(5/22 Pages) ONSEMI

5 / 22 page

LP2950, LP2951, NCV2951

http://onsemi.com

ELECTRICAL CHARACTERISTICS (continued)

(Vin = VO + 1.0 V, IO = 100 mA, CO = 1.0 mF, TA = 25C [Note 8], unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

Line Regulation (Vin = VO(nom) +1.0 V to 30 V) (Note 9)

Regline

LP2950C−XX/LP2951C/LP2951C−XX/NCV2951C*

−

0.08

0.20

LP2950AC−XX/LP2951AC/LP2951AC−XX/NCV2951AC*

−

0.04

0.10

Load Regulation (IO = 100 mA to 100 mA)

Regload

LP2950C−XX/LP2951C/LP2951C−XX/NCV2951C*

−

0.13

0.20

LP2950AC−XX/LP2951AC/LP2951AC−XX/NCV2951AC*

−

0.05

0.10

Dropout Voltage

VI − VO

IO = 100 mA

−

IO = 100 mA

−

350

450

Supply Bias Current

ICC

IO = 100 mA

−

120

IO = 100 mA

−

4.0

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

IO = 100 mA) (Note 9)

ICCdropout

−

110

170

Current Limit (VO Shorted to Ground)

ILimit

−

220

300

Thermal Regulation

Regthermal

−

0.05

0.20

%/W

Output Noise Voltage (10 Hz to 100 kHz) (Note 10)

mVrms

CL = 1.0 mF

−

126

−

CL = 100 mF

−

LP2951A/LP2951AC Only

Reference Voltage (TA = 25C)

Vref

LP2951C/LP2951C−XX/NCV2951C*

1.210

1.235

1.260

LP2951AC/LP2951AC−XX/NCV2951AC*

1.220

1.235

1.250

Reference Voltage (TA = −40 to +125C)

Vref

LP2951C/LP2951C−XX/NCV2951C*

1.200

−

1.270

LP2951AC/LP2951AC−XX/NCV2951AC*

1.200

−

1.260

Reference Voltage (TA = −40 to +125C)

Vref

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

LP2951C/LP2951C−XX/NCV2951C*

1.185

−

1.285

LP2951AC/LP2951AC−XX/NCV2951AC*

1.190

−

1.270

Feedback Pin Bias Current

IFB

−

Error Comparator

Output Leakage Current (VOH = 30 V)

Ilkg

−

0.01

1.0

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

VOL

−

150

250

Upper Threshold Voltage (Vin = 6.0 V)

Vthu

−

Lower Threshold Voltage (Vin = 6.0 V)

Vthl

−

Hysteresis (Vin = 6.0 V)

Vhy

−

Shutdown Input

Input Logic Voltage

Vshtdn

Logic “0” (Regulator “On”)

−

0.7

Logic “1” (Regulator “Off”)

2.0

−

Shutdown Pin Input Current

Ishtdn

Vshtdn = 2.4 V

−

Vshtdn = 30 V

−

450

600

Regulator Output Current in Shutdown Mode

Ioff

−

3.0

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

6. The Junction−to−Ambient Thermal Resistance is determined by PCB copper area per Figure 29.

7. ESD data available upon request.

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

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

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

*NCV prefix is for automotive and other applications requiring site and change control.

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