LP2986AIMM-3.3 datasheet(5/26 Pages) TI

Part #	LP2986AIMM-3.3

Description	Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage Regulator

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Manufacturer	TI [Texas Instruments]

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LP2986

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SNVS137H – MARCH 1999 – REVISED APRIL 2013

Electrical Characteristics (continued)

Limits in standard typeface are for T J = 25°C, and limits in boldface type apply over the full operating temperature range.

Unless otherwise specified: VIN = VO(NOM) + 1V, IL = 1 mA, COUT = 4.7 µF, CIN = 2.2 µF, VS/D = 2V.

LM2986AI-X.X(1)

LM2986I-X.X(1)

Symbol

Parameter

Conditions

Typical

Units

Min

Max

Min

Max

FEEDBACK PIN

VFB

1.21

1.25

1.20

1.26

1.23

Feedback Pin Voltage

1.20

1.26

1.19

1.27

V

See(5)

1.23

1.19

1.28

1.18

1.29

FB Pin Voltage

See(6)

20

ppm/°C

Temperature Coefficient

IFB

330

Feedback Pin Bias Current

IL = 200 mA

150

nA

760

FB Pin Bias Current

See(6)

0.1

nA/°C

Temperature Coefficient

SHUTDOWN INPUT

VS/D

VH = O/P ON

1.4

1.6

S/D Input Voltage(7)

V

VL = O/P OFF

0.55

0.18

IS/D

VS/D = 0

0

−1

S/D Input Current

µA

VS/D = 5V

5

15

ERROR COMPARATOR

IOH

1

Output “HIGH” Leakage

VOH = 16V

0.01

µA

2

VOL

220

VIN = VO(NOM) − 0.5V,

Output “LOW” Voltage

150

mV

IO(COMP) = 300 µA

350

VTHR

−5.5

−3.5

−5.5

−3.5

Upper Threshold Voltage

−4.6

(MAX)

−7.7

−2.5

−7.7

−2.5

VTHR

−8.9

−4.9

−8.9

−4.9

%VOUT

Lower Threshold Voltage

−6.6

(MIN)

−13.0

−3.3

−13.0

−3.3

HYST

Hysteresis

2.0

(5)

VFB ≤ VOUT ≤ (VIN − 1), 2.5V ≤ VIN ≤ 16V, 100 µA ≤ IL ≤ 200 mA, TJ ≤ 125°C.

(6)

Temperature coefficient is defined as the maximum (worst-case) change divided by the total temperature range.

(7)

To prevent mis-operation, the Shutdown input must be driven by a signal that swings above VH and below VL with a slew rate not less

than 40 mV/µs (see Application Hints).

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