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LTC1504A

ABSOLUTE MAXIMUM RATINGS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS V

CC = 5V, TA = 25°C unless otherwise specified. (Note 2)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VCC

Minimum Supply Voltage

(Note 7)

VFB

Feedback Voltage

LTC1504ACS8

1.25

1.265

1.28

LTC1504AIS8

1.23

1.265

1.29

∆VFB

Feedback Voltage PSRR

Figure 1, 4V

≤ VCC ≤ 10V, LTC1504ACS8

1.1

1.6

Figure 1, 4V

≤ VCC ≤ 10V, LTC1504AIS8

1.1

1.8

VSENSE

Sense Pin Voltage

LTC1504ACS8-3.3

3.20

3.30

3.40

∆VSENSE

Sense Voltage PSRR

Figure 1, 4V

≤ VCC ≤ 10V, LTC1504ACS8-3.3

1.2

1.8

Figure 1, 4V

≤ VCC ≤ 10V, LTC1504AIS8-3.3

1.2

2.0

ICC

Supply Current

Figure 1, VSHDN = VCC, IOUT = 0 (Note 4)

Figure 1, VSHDN = VCC, IOUT = 0, VFB/VSENSE = VCC (Note 4)

0.3

0.6

VSHDN = 0V

1.0

µA

fOSC

Internal Oscillator Frequency

Commercial

150

200

250

kHz

Industrial

130

200

300

kHz

RSW

Internal Switch Resistance

Commercial

1.3

2.0

Ω

Industrial

1.3

2.2

Ω

VIH

SHDN Input High Voltage

2.4

VIL

SHDN Input Low Voltage

0.8

IIN

SHDN Input Current

±0.1

±1

µA

VOH

Error Amplifier Positive Swing

Figure 2

4.5

4.95

VOL

Error Amplifier Negative Swing

Figure 2

0.05

0.5

IOH, IOL

Error Amplifier Output Current

Figure 2

±50

±100

±200

µA

gmV

Error Amplifier Transconductance

Commercial (Note 5)

350

600

1100

µmho

Industrial (Note 5)

300

600

1200

µmho

Error Amplifier DC Gain

(Note 5)

gmI

ILIM Amplifier Transconductance

(Note 6)

2000

µmho

IMAX

IMAX Sink Current

VIMAX = VCC, Commercial

812

µA

VIMAX = VCC, Industrial

812

µA

ORDER PART

NUMBER

S8 PART MARKING

Consult factory for Military grade parts.

1504AI

04AI33

TJMAX = 125°C, θJA = 90°C/W

TOP VIEW

COMP

SHDN

FB/SENSE*

IMAX

VCC

GND

S8 PACKAGE

8-LEAD PLASTIC SO

*FB FOR LTC1504A, SENSE FOR LTC1504A-3.3

LTC1504ACS8

LTC1504ACS8-3.3

LTC1504AIS8

LTC1504AIS8-3.3

(Note 1)

Supply Voltage (VCC to GND)................................... 10V

Peak Output Current (SW) .......................................

±1A

Input Voltage (All Other Pins) ...... – 0.3V to (VCC + 0.3V)

Operating Temperature Range

LTC1504AC ............................................. 0

°C to 70°C

LTC1504AI ......................................... – 40

°C to 85°C

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

°C to 150°C

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

°C

1504A

1504A33

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