LT3469_15 datasheet(2/8 Pages) LINER

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LT3469

3469f

VIN Voltage ............................................................. 16V

SW Voltage ............................................................. 40V

VCC Voltage............................................................. 38V

+IN, –IN Voltage ..................................................... 10V

FB Voltage ................................................................ 3V

Current Into SW Pin ................................................. 1A

Operating Temperature Range (Note 2) .. – 40

°C to 85°C

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

°C to 150°C

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

°C

ORDER PART

NUMBER

(Note 1)

ABSOLUTE

AXI U

RATI GS

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

LT3469ETS8

TJMAX = 125°C, θJA = 250°C/W

The q denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 2) VIN = 5V, VCC = 35V, unless otherwise noted.

ELECTRICAL CHARACTERISTICS

TS8 PART MARKING

LTACA

OUT 1

FB 2

VIN 3

GND 4

8 –IN

7 +IN

6 VCC

5 SW

TOP VIEW

TS8 PACKAGE

8-LEAD PLASTIC TSOT-23

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

gm Amplifier

Input Offset Voltage

VOUT = VCC/2

310

Input Offset Current

100

Input Bias Current

150

500

Input Resistance—Differential Mode

Ω

Input Resistance—Common Mode

200

Ω

Common Mode Rejection Ratio

VCM = 0V to 10V

100

Power Supply Rejection Ratio—VIN

VIN = 2.5V to 16V

120

Power Supply Rejection Ratio—VCC

VCC = 15V to 35V

Gain

No Load, VOUT = 2V to 33V

V/mV

RL = 200k, VOUT = 2V to 33V

V/mV

Transconductance

IOUT = ±100µA

160

220

260

µA/mV

140

300

µA/mV

Maximum Output Current

VOUT = VCC/2

±30

±40

±55

±23

±58

Maximum Output Voltage, Sourcing

VCC = 35V, IOUT = 10mA

34.0

34.5

VCC = 35V, IOUT = 0mA

34.5

34.9

Minimum Output Voltage, Sinking

IOUT = –10mA

200

1000

IOUT = 0mA

500

Output Resistance

VCC = 35V, VOUT = 2V to 33V

100

Ω

Supply Current—VCC

VCC = 35V

1.5

2.5

Switching Regulator

Minimum Operating Voltage

2.5

Maximum Operating Voltage

Feedback Voltage

1.19

1.23

1.265

FB Pin Bias Current

200

FB Line Regulation

2.5V < VIN < 16V

0.03

%/V

Supply Current—VIN

1.9

2.6

Switching Frequency

0.8

1.3

1.7

MHz

Maximum Duty Cycle

Switch Current Limit (Note 3)

165

220

Switch VCESAT

ISW = 100mA

350

500

PACKAGE/ORDER I FOR ATIO

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