ST2L05 datasheet(7/23 Pages) STMICROELECTRONICS

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ST2L05

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Table 8: Electrical Characteristics Of Fixed Output 1.8V (IO = 10mA to 1A, TJ = 0 to 125°C,

VI = 4.5V to 7V, CI = 4.7µF, CO1 = CO2 = 4.7µF, otherwise specified)

NOTE 1: Bandwidth of 10 Hz to 10KHz.

NOTE 2: 120Hz input ripple.

NOTE 3: CI = 20µF, C1 and CO2 = 10µF. CI, CO1 and CO2 are all X7R ceramic capacitors.

NOTE 4: Guaranteed by design, not tested in production.

NOTE 5: % undershoot or overshoot of VO.

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Output Voltage 1.8V

IO = 5mA to 1A, VI = 4.75 to 5.25V

T = 25°C

1.764

1.8

1.836

Output Voltage 1.8V

IO = 5mA to 1A, VI = 4.75 to 5.25V

1.746

1.8

1.854

∆V

Line Regulation

VI = 4.75 to 5.25V, IO = 5mA to 1A

∆V

Load Regulation

VI = 4.75V, IO = 10mA to 1A

Dropout Voltage

∆V

O = -1%

IO = 1A

1.3

Current Limit

VI = 5.5V

IOMIN

Min. Output Current for

regulation

0mA

RMS Output Noise (1)(4)

T = 25°C

0.003

SVR

Supply Voltage

Rejection (2)(4)

VI = 5V

∆V

O/∆IO

Transient Response

Change of VO with step

load change(3)(4)

VI = 5V, IO = 1mA to 1A, tr ≥ 1µs

10(5)

VI = 5V, IO = 1A to 1mA, tf ≥ 1µs

10(5)

∆V

O1/∆VI

Transient Response

Change of VOUT1 with

application of VI

(3)(4)

0 to 5V step input, IO = 1mA to 1A,

tr ≥ 1µs

10(5)

∆V

O/∆IO

Transient Response Short

Circuit Removal

Response (3)(4)

VI = 5V, IO = short to IO = 10mA

20(5)

Thermal Regulation (4)

IO = 1A, tPULSE = 30ms

0.1

%/W

Temperature Stability (4)

0.5

Long Term Stability (4)

(1000Hrs)

TJ = 125°C

0.3

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