LT1123CST Просмотр технического описания (PDF) - Linear Technology

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LT1123CST

Low Dropout Regulator Driver

Linear Technology 

LT1123

ABSOLUTE AXI U RATI GS (Note 1)

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

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

Operating Junction Temperature Range ... 0°C to 125°C

Storage Temperature Range ................. –65°C to 150°C

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

UW U

PACKAGE/ORDER I FOR ATIO

TAB IS

GND

FRONT VIEW

3 FB

2 GND

ORDER PART

NUMBER

LT1123CST

1 DRIVE

ST PACKAGE

3-LEAD PLASTIC SOT-223

θJA AT TAB ≈ 20°C/W

ST PART MARKING

1123

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

BOTTOM VIEW

DRIVE FB GND

Z PACKAGE

3-LEAD TO-92 PLASTIC

TJMAX = 125°C, θJA = 220°C/W

ORDER PART

NUMBER

LT1123CZ

ELECTRICAL CHARACTERISTICS

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

PARAMETER

Feedback Voltage

Feedback Pin Bias Current

Drive Current

Drive Pin Saturation Voltage

Line Regulation

Load Regulation

Temperature Coefficient of VOUT

CONDITIONS

MIN

TYP

MAX

IDRIVE = 10mA, TJ = 25°C

4.90

5.00

5.10

5mA ≤ IDRIVE ≤ 100mA

3V ≤ VDRIVE ≤ 20V

●

4.80

5.00

5.20

VFB = 5.00V, 2V ≤ VDRIVE ≤ 15V

●

300

500

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

25

100

150

IDRIVE = 10mA, VFB = 4.5V

1.4

IDRIVE = 125mA, VFB = 4.5V

2.0

5V < VDRIVE < 20V

●

1.0

±20

∆IDRIVE = 10 to 100mA

●

–5

– 50

0.2

UNITS

V

V

µA

mA

V

mV

mV

mV/°C

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

of the device may be impaired.

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2

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