L1581-3.3 Просмотр технического описания (PDF) - Niko Semiconductor

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производитель

L1581-3.3

Dual Input Ultra Low Dropout Voltage Regulator (ULDO) TO-220,TO-263

Niko Semiconductor 

NIKO-SEM

Dual Input Ultra Low Dropout

Voltage Regulator (ULDO)

L1581 Series

TO-220,TO-263

ABSOLUTE MAXIMUM RATINGS

z Input Supply Voltage, VIN

Control Input Voltage, VCTRL

z Power Dissipation, PD

z Thermal Resistance

Junction to Case, θJC

z Thermal Resistance

Junction to Ambient, θJA

7V

13.2V

Internally

Limited

3 °C/W

60 °C/W

z Operating Junction

Temperature Range, TJ

z Storage Temperature

Range, TSTG

z Lead Temperature, TLEAD

(Soldering, 10 Seconds)

0 to 125 °C

-40 to 150 °C

260 °C

ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TJ = 25 °C)

Parameter

Symbol

Test Conditions

Typical

Limits

Reference Voltage(1)

(Adj. Voltage

Versions)

Dropout Voltage(1) (2)

Minimum VIN

Output Voltage(1)

(Fixed Voltage

Versions)

Line Regulation(1)

Load Regulation

VREF

ŠVCTRL=4.5V, VIN=2.05V, IOUT=10mA

Š1.237V~1.263V

ŠVCTRL = 4.5V, 10mA < IOUT < 5A, 1.25V Š1.231V~1.269V

VIN = 2.05V

VI - VO VCTRL = 4.75V, IOUT = 5A

0.54V 0.62V (Max)

VOUT

ŠVCTRL = 5V, VIN = VOUT ＋ 0.8V,

IOUT=10mA

ŠVCTRL = 5V, 10mA < IOUT < 5A,

VIN = VOUT ＋ 0.8V

REG(LINE)

VCTRL = 4.5V to 12V,

0.8V) to 5.5V, IOUT =

VIN = (VOUT＋

10mA

REG(LOAD)

VCTRL

IOUT =

= 4.5V, VIN =

10mA ~ 5A

(VOUT＋0.8V)

,

VOUT

1.0mV

1.0mV

± 1%

± 1.5%

3.0mV

5.0mV

Thermal Regulation(6) REG(Thermal)

0.002 0.02% / W

Minimum Load

Current(4)

Adjust Pin Current

Control Pin Current(3)

Current Limit

Ripple Rejection

Ratio(5)

IO

IADJ

ICTRL

ICL

RA

VCTRL = 5V, VIN = VOUT＋0.8V

VCTRL = 4.5V, VIN = VOUT＋0.8V,

IOUT = 10mA

VCTRL = 4.5V, VIN = VOUT＋0.8V,

IOUT = 5A

VCTRL = 4.5V, VIN = VOUT＋0.8V

ΔVOUT = 100mV

VCTRL = VIN = 5V, IOUT = 5A

%/W

5mA

50µA

33mA

10mA

120µA

120mA

5.1A (Min)

80dB 60dB (Min)

3

JAN-08-Y02

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