LT1123CST datasheet(2/16 Pages) LINER

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LT1123

1123fb

Drive Pin Voltage (VDRIVE to Ground) ..................... 30V

Feedback Pin Voltage (VFB to Ground) .................... 30V

Operating Junction Temperature Range ... 0

°C to 125°C

ORDER PART

NUMBER

LT1123CST

ABSOLUTE

AXI U

RATI GS

Storage Temperature Range ................. –65

°C to 150°C

Lead Temperature (Soldering, 10 sec)................. 300

°C

PACKAGE/ORDER I FOR ATIO

(Note 1)

ORDER PART

NUMBER

LT1123CZ

ST PART MARKING

FRONT VIEW

TAB IS

GND

DRIVE

ST PACKAGE

3-LEAD PLASTIC SOT-223

BOTTOM VIEW

DRIVE

GND

Z PACKAGE

3-LEAD TO-92 PLASTIC

1123

θJA AT TAB ≈ 20°C/W

TJMAX = 125°C, θJA = 220°C/W

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Feedback Voltage

IDRIVE = 10mA, TJ = 25°C

4.90

5.00

5.10

5mA

≤ IDRIVE ≤ 100mA

≤ VDRIVE ≤ 20V

●

4.80

5.00

5.20

Feedback Pin Bias Current

VFB = 5.00V, 2V ≤ VDRIVE ≤ 15V

●

300

500

µA

Drive Current

VFB = 5.20V, 2V ≤ VDRIVE ≤ 15V

●

0.45

1.0

VFB = 4.80V, VDRIVE = 3V

●

125

170

VFB = 0.5V, VDRIVE = 3V, 0°C ≤ TJ ≤ 100°C

100

150

Drive Pin Saturation Voltage

IDRIVE = 10mA, VFB = 4.5V

1.4

IDRIVE = 125mA, VFB = 4.5V

2.0

Line Regulation

5V < VDRIVE < 20V

●

1.0

±20

Load Regulation

∆IDRIVE = 10 to 100mA

●

–5

–50

Temperature Coefficient of VOUT

0.2

mV/

°C

Note 1: Absolute Maximum Ratings are those values beyond which the life

of the device may be impaired.

ELECTRICAL CHARACTERISTICS

The

● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.

Consult LTC Marketing for parts specified with wider operating temperature ranges.

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