LM217D2T 查看數據表（PDF） - STMicroelectronics

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LM217D2T

1.2 V to 37 V adjustable voltage regulators

STMicroelectronics 

LM117/LM217/LM317

Electrical characteristics

Table 5.

Symbol

Electrical characteristics for LM317 (VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and

PMAX = 20 W, TJ = 0 to 125°C, unless otherwise specified)

Parameter

Test conditions

Min. Typ. Max. Unit

ΔVO Line regulation

VI - VO = 3 to 40 V

TJ = 25°C

0.01 0.04

%/V

0.02 0.07

ΔVO Load regulation

VO ≤5 V

IO = 10 mA to IMAX

VO ≥5 V,

IO = 10 mA to IMAX

TJ = 25°C

TJ = 25°C

5

25

mV

20

70

0.1 0.5

%

0.3 1.5

IADJ Adjustment pin current

50 100 µA

ΔIADJ Adjustment pin current

VI - VO = 2.5 to 40V,

IO = 10 mA to 500mA

0.2

5

µA

VREF

Reference voltage

(between pin 3 and pin 1)

VI - VO = 2.5 to 40V IO = 10 mA to 500mA

PD ≤PMAX

1.2

1.25

1.3

V

ΔVO/VO

Output voltage

temperature stability

1

%

IO(min) Minimum load current

VI - VO = 40 V

3.5 10 mA

VI - VO ≤15 V, PD < PMAX

1.5 2.2

IO(max) Maximum load current

VI - VO = 40 V, PD < PMAX, TJ = 25°C

A

0.4

eN

Output noise voltage

(percentage of VO)

B = 10Hz to 100kHz, TJ = 25°C

0.003

%

SVR Supply voltage rejection (1) TJ = 25°C, f = 120Hz

CADJ=0

65

dB

CADJ=10µF 66

80

1. CADJ is connected between pin 1 and ground.

7/25

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