LTC1753_15 datasheet(2/24 Pages) LINER

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LTC1753

1753fa

ORDER PART

NUMBER

TJMAX = 125°C, θJA = 100°C/ W (G)

TJMAX = 125°C, θJA = 100°C/ W (SW)

TOP VIEW

G PACKAGE

20-LEAD PLASTIC SSOP

SW PACKAGE

20-LEAD PLASTIC SO

PVCC

GND

SGND

VCC

SENSE

IMAX

IFB

COMP

OUTEN

VID0

VID1

VID2

VID3

VID4

PWRGD

FAULT

VFB

LTC1753CG

LTC1753CSW

(Note 1)

Supply Voltage

VCC ........................................................................ 7V

PVCC ................................................................... 14V

Input Voltage

IFB (Note 2)............................................ PVCC + 0.3V

IMAX ........................................................ – 0.3V to 9V

All Other Inputs ...................... – 0.3V to (VCC + 0.3V)

Digital Output Voltage ................................. – 0.3V to 9V

IFB Input Current (Notes 2, 3) .......................... – 100mA

Junction Temperature .......................................... 125

°C

Operating Temperature Range ..................... 0

°C to 70°C

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

°C to 150°C

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

°C

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VCC

Supply Voltage

4.5

PVCC

Supply Voltage for G1, G2

13.2

VFB

Internal Feedback Voltage

1.3V Output Voltage

0.5

2.1V Initial Output Voltage

0.8

3.5V Initial Output Voltage

1.34

VOUT

1.3V Initial Output Voltage

With Respect to Rated Output Voltage (Figure 2)

– 20 (– 1.5%)

20 (+ 1.5%)

1.8V Initial Output Voltage

– 27 (– 1.5%)

27 (+ 1.5%)

2.8V Initial Output Voltage

– 42 (– 1.5%)

42 (+ 1.5%)

3.5V Initial Output Voltage

– 52 (– 1.5%)

52 (+ 1.5%)

1.3V Initial Output Voltage

– 26 (– 2%)

26 (+ 2%)

1.8V Initial Output Voltage

– 36 (– 2%)

36 (+ 2%)

2.8V Initial Output Voltage

– 56 (– 2%)

56 (+ 2%)

3.5V Initial Output Voltage

– 70 (– 2%)

70 (+ 2%)

∆VOUT

Output Load Regulation

IOUT = 0 to 14A (Figure 2)

– 5

Output Line Regulation

VIN = 4.75V to 5.25V, IOUT = 0 (Figure 2)

±1mV

VPWRGD

Positive Power Good Trip Point

% Above Output Voltage (Note 4) (Figure 2)

Negative Power Good Trip Point

% Below Output Voltage (Note 4) (Figure 2)

–6

–3

VFAULT

FAULT Trip Point

% Above Output Voltage (Note 4) (Figure 2)

813

ICC

Operating Supply Current

OUTEN = VCC = 5V (Note 5)(Figure 3)

800

1200

µA

Shutdown Supply Current

OUTEN = 0, VID0 to VID4 Floating (Figure 3)

130

250

µA

IPVCC

Supply Current

PVCC = 12V, OUTEN = VCC (Note 6) (Figure 3)

PVCC = 12V, OUTEN = 0, VID0 to VID4 Floating

µA

fOSC

Internal Oscillator Frequency

(Figure 4)

250

300

350

kHz

VSAWL

VCOMP at Minimum Duty Cycle

(Note 11)

1.8

VSAWH

VCOMP at Maximum Duty Cycle

(Note 11)

2.8

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

ELECTRICAL CHARACTERISTICS

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

VCC = 5V, PVCC = 12V, unless otherwise noted. (Note 3)

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

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