2D1518 Просмотр технического описания (PDF) - Holtek Semiconductor

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2D1518

High PSRR 300mA Dual LDO Regulator

Holtek Semiconductor 

HT72Dxxxx

ELECTRICAL CHARACTERISTICS

TJ=25°C, VIN=VOUT+1.0V, IOUT=30mA, unless otherwise specified (Note 2)

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

VIN

Input Voltage

—

2.5

VOUT

Output Voltage Tolerance

IOUT=30mA

-2

IOUT

Maximum Output Current(Note 3) IOUT1 , IOUT2

300

∆VLINE Line Regulation

VOUT+0.5V≤VIN≤7V IOUT =10mA

—

1.5V≤VOUT≤1.8V —

∆VLOAD Load Regulation (Note 4)

1mA≤IOUT≤300mA 2.5V≤VOUT≤3.0V —

3.3V≤VOUT≤5.0V —

VDROP Dropout Voltage (Note5)

∆VOUT= 2%

IOUT=300mA

1.5V≤VOUT≤1.8V —

2.5V≤VOUT≤5.0V —

VNO

Output Voltage Noise

Bandwidth=10Hz to 100kHz

—

ILIMIT

Short Current Limit

VOUT=0V

—

ISS

Supply Current

IOUT=0mA, VEN1=VEN2=VIN

—

IDS

Shutdown Current

VEN1=VEN2=VSS

—

VIH

EN Input High Voltage

VOUT+1V≤VIN≤7V

2.0

VIL

EN Input Low Voltage

VOUT+1V≤VIN≤7V

—

f=1kHz

—

RR

Ripple Rejection

IOUT=30mA f=10kHz

—

∆VOUT

∆Ta • VOUT

Temperature Coefficient

-40°C<Ta<85°C

—

TSD

Thermal Shutdown Temperature

—

—

—

—

—

0.02

10

15

20

0.6

0.34

30

90

30

0.1

-

-

70

53

±100

150

7

V

+2

%

—

mA

0.1 %/V

20

30

mV

40

0.9

V

0.64

—

μVRMS

—

mA

50

μA

1

μA

—

V

0.4

—

dB

—

— ppm/°C

—

°C

Note 1. Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating

Ratings indicate conditions for which the device is intended to be functional, but do not guarantee

specific performance limits. The guaranteed specifications apply only for the test conditions listed.

2. Specifications are production tested at TA=room temperature. Specifications over the -40°C to 85°C

operating temperature range are assured by design, characterization and correlation with Statistical

Quality Controls (SQC).

3. The input/output differential voltage multiplied by the output current must be less than than the package

power dissipation value of 250mW.

4. Load regulation is measured at constant junction temperature, using pulse testing with a short ON time.

The devices are guaranteed up to the maximum power dissipation. Power dissipation is determined by the

input/output differential voltage and the output current. Guaranteed maximum power dissipation will not

be available over the full input/output range. The maximum allowable power dissipation at any ambient

temperature is PD = (TJ(MAX) – TA)/θJA.

5. Dropout voltage is the minimum input to output voltage differential needed to maintain regulation at a

specified output current. During dropout conditions, the output voltage will be equal to: VIN – VDROP.

Rev. 1.00

3

August 08, 2011

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