LDS3985PU15R 데이터 시트보기 (PDF) - STMicroelectronics

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LDS3985PU15R

Ultra low drop-low noise BiCMOS 300 mA voltage regulator for use with very low ESR output capacitor

STMicroelectronics 

Electrical characteristics

LDS3985xx

Table 5.

Symbol

Electrical characteristics for LDS3985xx (continued)

Parameter

Test conditions

Min. Typ. Max. Unit

Inhibit input logic Low

VINH

Inhibit input logic High

IINH

eN

tON

TSHDN

Inhibit input current

Output noise voltage

Turn On time (4)

Thermal shutdown

CO Output capacitor

VI = 2.5 V to 6 V, TJ= - 40 to 125 °C

VINH = 0.4 V, VI = 6 V

BW = 10 Hz to 100 kHz, CO = 2.2 µF

CBYP = 33 nF

(5)

Capacitance

ESR

0.4

V

1.4

±1

nA

30

µVRMS

240

µs

160

°C

2.2

22

µF

5

5000 mΩ

1. For VO(NOM) < 2 V, VI = 2.5 V

2. For VO(NOM) = 1.25 V, VI = 2.5 V

3. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. This

specification does not apply for input voltages below 2.5 V

4. Turn-on time is time measured between the enable input just exceeding VINH high value and the output voltage just

reaching 95 % of its nominal value

5. Typical thermal protection hysteresis is 20 °C

8/20

Doc ID 11039 Rev 7

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