LP3983

SNVS213A – MAY 2004 – REVISED MARCH 2013

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Electrical Characteristics

Unless otherwise specified: VEN = 1.8V,VIN = VOUT(nom) + 1.0V, CIN = 1.0 µF, IOUT = 1.0mA, COUT = 1.0 µF.

Typical values and limits appearing in standard typeface are for TJ = 25°C. Limits appearing in boldface type apply over the

entire junction temperature range for operation,

−40°C to +125°C.

(1) (2)

Limit

Symbol

Parameter

Conditions

Typ

Units

Min

Max

Output Voltage

IOUT = 0mA to 5mA

-55

+55

mV from

Tolerance

VOUT(nom)

-96

+96

ΔVOUT

% of

− 6

+6

VOUT(nom)

PSRR

Power Supply Rejection Ratio

VIN = VOUT(nom) + 1V,

10

dB

f

≤10 kHz, IOUT = 1mA

IQ

Quiescent Current

IOUT = 50µA, VIN = 4.2V

14

21

µA

VEN = 0.4V, VIN = 4.2V

1

3

ISC

Short Circuit Current Limit (3)

Output Grounded

28

35

mA

IOUT

Maximum Output Current

(4)

5

mA

Logic Control Characteristics

IEN

Maximum Input Current at VEN VEN = 0.4 and VIN= 6.0V

0.02

µA

input

VIL

Logic Low Input Threshold

VIN = VIN(MIN) to 6.0V

0.5

V

VIH

Logic High Input Threshold

VIN = VIN(MIN) to 6.0V

1.2

V

Timing Characteristics

TON

Turn on Time(3)

(5)

170

250

µs

(1)

All limits are guaranteed. All electrical characteristics having room-temperature limits are tested during production with TJ = 25°C or

correlated using Statistical Quality Control methods. Operation over the temperature specification is guaranteed by correlating the

electrical characteristics to process and temperature variations and applying statistical process control.

(2)

The target output voltage which is labelled VOUT(NOM) is the desired voltage option.

(3)

This electrical specification is guaranteed by design.

(4)

The device maintains the regulated output voltage without load.

(5)

Time from VEN = 1.2V to VOUT = 95% of VOUT(NOM)

Electrical Characteristics Output Capacitor, Recommended Specifications

Limit

Symbol

Parameter

Conditions

Value

Units

Min

Max

Co

Output Capacitor

Capacitance(1)

1.0

0.75

µF

ESR

5

500

m

Ω

(1)

The capacitor tolerance should be ±25% or better over the temperature range. Capacitor types recommended are X7R, Y5V, and Z5U.

4

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