LDO59 datasheet(2/4 Pages) STMICROELECTRONICS

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LDO_59

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ELECTRICAL CHARACTERISTICS

3V < VIN < 5.5V, -30°C < T < 125°C, 0.8µF < COUT < 1.2µF, 20mΩ < ESR < 0.6Ω, 100µA < ILOAD <20mA.

Typical case : VIN = 4V, T = 25°C, IOUT = 10mA.

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

ILOAD

PMOS Output Resistance

RON

0,6

Ω

Dropout Voltage

∆V

OUT = 50mV,

ILOAD = 20mA

(Note 2)

170

Quiescent current

ILOAD = 100µA50

µA

ILOAD = 20mA

150

µA

Power down mode quiescent

current

IQPRWDWN

Power down active

100

Power Supply Rejection Ratio

PSRR

DC to 10KHz

f < 100KHz

Load Regulation

Ldr

Line Regulation

Lir

ILOAD = 20mA,

VOUT = 2.8V

0,5

Line Transient

Lirt

VOUT = 2.8V,

ILOAD = 20mA,

∆V

IN = 300mV

tRISE = tFALL = 10µs

0,5

Load Transient

Ldtr

VOUT = 2.8V

tFALL = tRISE = 10µs

0,3

Recovery time

µs

Output Noise Voltage

VOUT = 2.8V

100Hz < f < 1KHz

160

200

1KHz < f < 100KHz

Output decoupling capacitor

COUT

µF

Settling time (from power down

to active mode)

VOUT = 2.8V,

COUT = 1.2µF

µs

Short Circuit Current Limit

ISHORT

200

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