ST2L05 datasheet(6/23 Pages) STMICROELECTRONICS

部品番号	ST2L05

部品情報	VERY LOW QUIESCENT CURRENT DUAL VOLTAGE REGULATOR

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ST2L05

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Table 6: Output1 And Output2 Dual Specification (IO = 10mA to 1A, TJ = 0 to 125°C, VI = 4.5V to 7V,

CI = 4.7µF, CO1 = CO2 = 4.7µF, otherwise specified)

Table 7: Electrical Characteristics Of Fixed Output 1.5V (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

IGND

Quiescent Current (Fixed/ADJ)

VI ≤ 7V

IOUT1,2 = 5mA to 1A

5

mA

IGND

Quiescent Current (Fixed/Fixed) VI ≤ 7V

IOUT1,2 = 5mA to 1A

7

mA

IST

Total Current Limit IO1 + IO2

2A

TSHDN Thermal Shutdown

175

°C

DTSHDN Thermal Shutdown Hysteresis

5

°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VO

Output Voltage 1.5V

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

T = 25°C

1.47

1.5

1.53

V

VO

Output Voltage 1.5V

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

1.455

1.5

1.545

V

∆V

O

Line Regulation

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

15

mV

∆V

O

Load Regulation

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

12

mV

VD

Dropout Voltage

∆V

O = -1%

IO = 1A

1.3

V

IS

Current Limit

VI = 5.5V

1

A

IOMIN

Min. Output Current for

regulation

0mA

eN

RMS Output Noise (1)(4)

T = 25°C

0.003

%

SVR

Supply Voltage

Rejection (2)(4)

VI = 5V

60

dB

∆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)

%

TR

Thermal Regulation (4)

IO = 1A, tPULSE = 30ms

0.1

%/W

S

Temperature Stability (4)

0.5

%

S

Long Term Stability (4)

(1000Hrs)

TJ = 125°C

0.3

%

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