LDO514 datasheet(2/4 Pages) STMICROELECTRONICS

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LDO_514

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ELECTRICAL CHARACTERISTICS

3V < VIN < 5.5V, -55°C < TA < +125°C, COUT = 1µF ±20%, 20mΩ < ESR < 0.6Ω, ILOAD = 200mA.

Typical case : VIN = 4V, T = 25°C, COUT = 1µF.

Notes: 1. Above characteristics are given for 3V minimum input operating range voltage, but regulator is

operational with 2.7V minimum input voltage.

2. All parameters are guaranteed with 170mV min Dropout voltage.

Parameter

Symbol

Test Condition

Min.

Typ.

Max.

Unit

Input Voltage Range (Note 1)

VIN

5.5

Output Voltage

VOUT

2.8

Output Voltage Accuracy

Output current

IOUT

200

Dropout Voltage

∆V

OUT = 50mV,

ILOAD = 200mA

(Note 2)

170

Quiescent current

ILOAD = 100µA

110

µA

ILOAD = 20mA

130

ILOAD = 200mA

320

440

Power down mode quiescent

current

IQPDM

Power down active

100

Power Supply Rejection Ratio

PSRR

f = 10KHz

f = 100KHz

Line Regulation

LIR

ILOAD = 200mA,

VIN = 3V to 5.5V

1.5

2.5

Load Regulation

LDR

ILOAD = 100µA - 200mA

Line Transient

LIRT

∆V

IN = 300mV

tRISE = tFALL = 10µs

Load Transient

LDTR

ILOAD = 100µA - 200mA

in 10µs

0.5

Output Noise Voltage

100Hz

1400

1KHz

450

10KHz

150

enRMS

BW : 100Hz to 100KHz

µVRMS

Output decoupling Capacitor

COUT

1µF

Settling time

ILOAD = 200mA

µs

Short Circuit Current Limit

ISHORT

800

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