2

LR8

Ordering Information

DEVICE

Package Option

TO-243AA

TO-252

TO-92

LR8

LR8N8-G

LR8K4-G

LR8N3-G

-G indicates package is RoHS compliant (‘Green’)

Absolute Maximum Ratings

Parameter

Value

V

-0.5V to +480V

Output voltage range

-0.5V to +470V

Operating ambient temperature range

-40°C to +85°C

Operating junction temperature range

-40°C to +125°C

Storage temperature range

-65°C to +150°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent

damage to the device. These are stress ratings only, and functional operation of the

device at these or any other conditions beyond those indicated in the operational sections

of the specifications is not implied. Exposure to absolute maximum rating conditions for

extended periods may affect device reliability.

Pin Configurations

TO-252 (D-PAK)

(top view)

V

OUT

V

IN

ADJ

TO-243AA (SOT-89)

(top view)

V

IN

V

OUT

ADJ

V

OUT

V

IN

V

OUT

ADJ

TO-92

(front view)

Product marking for TO-243AA:

where

= 2-week alpha date code

LR8

Symbol

Parameter

Min

Typ

Max

Units

Conditions

V

Input to output voltage difference

12

-

450

V

---

V

OUT

Overall output voltage regulation

1.14

1.20

1.26

V

13.2V < V

R1 = 2.4KΩ, R2 = 0

V

OUT

Overall output voltage regulation

375

400

425

V

R1 = 2.4KΩ, R2 = 782KΩ

ΔV

OUT

Line regulation

-

0.003

0.01

%/V

17V < V

I

ΔV

OUT

Load regulation

-

1.4

3.0

%

V

0.5mA <I

ΔV

OUT

Temperature regulation

-1

-

+1

%

V

-40°C < T

I

OUT

Output current limit

10

-

30

mA

T

I

OUT

Output current limit

-

-

0.5

mA

T

I

OUT

Minimum output current

-

0.3

0.5

mA

Includes R1 and load current

I

ADJ

Adjust output current

5

10

15

µA

---

C2

Minimum output load capacitance

1

-

-

µF

---

DV

Ripple rejection ratio

50

60

-

dB

120Hz, V

T

LIMIT

Junction temperature limit

125

-

-

°C

---

Product Marking