LD3985M25R(2017) 查看數據表（PDF） - STMicroelectronics

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LD3985M25R
(Rev.:2017)

Ultra low drop and low noise BiCMOS voltage regulators

STMicroelectronics 

LD3985

5

Electrical characteristics

Electrical characteristics

TJ = 25 °C, VI = VO(NOM) +0.5 V, CI = 1 µF, CBYP = 10 nF, IO = 1 mA, VINH = 1.4 V, unless

otherwise specified.

Symbol

Table 4. Electrical characteristics

Parameter

Test conditions Min.

Typ.

VI

Operating input

voltage

2.5

Output voltage

IO = 1 mA

-50

VO accuracy, VO(NOM) <

2.5 V

TJ = -40 to 125 °C

-75

Output voltage

IO = 1 mA

-2

VO accuracy, VO(NOM) ≥

2.5V

TJ= -40 to 125 °C

-3

ΔVO Line regulation (1)

ΔVO Load regulation

ΔVO Load regulation

VI = VO(NOM) + 0.5

to 6 V

TJ = -40 to 125 °C

VO(NOM) = 4.7 to 5 V

IO = 1 mA to 150

mA, VO(NOM) < 2.5

V

TJ= -40 to 125 °C

IO = 1 mA to 150

mA, VO(NOM) ≥ 2.5

V

IO = 1 mA to

150mA, TJ = -40 to

125 °C, VO(NOM) ≥

2.5 V

-0.1

-0.19

0.002

0.0004

0.0025

ΔVO

Output AC line

regulation (2)

VI = VO(NOM) + 1 V,

IO = 150 mA,

tR= tF = 30 µs

IO = 0

Quiescent current

IO = 0, TJ= -40 to

125 °C

IQ

ON mode: VINH =

1.2 V

IO = 0 to 150 mA

IO = 0 to 150 mA,

TJ= -40 to 125 °C

OFF mode:

VINH = 0.4 V

TJ= -40 to 125 °C

1.5

85

170

0.003

Max.

6

50

75

2

3

0.1

0.19

0.008

0.002

0.005

150

250

1.5

Unit

V

mV

% of

VO(NOM)

%/V

%/mA

%/mA

mVPP

µA

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