LTC1753 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1753
Linear Technology
LTC1753 Datasheet PDF : 24 Pages
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LTC1753
ABSOLUTE AXI U RATI GS
(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
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
G2 1
PVCC 2
GND 3
SGND 4
VCC 5
SENSE 6
IMAX 7
IFB 8
SS 9
COMP 10
20 G1
19 OUTEN
18 VID0
17 VID1
16 VID2
15 VID3
14 VID4
13 PWRGD
12 FAULT
11 VFB
G PACKAGE
SW PACKAGE
20-LEAD PLASTIC SSOP 20-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 100°C/ W (G)
TJMAX = 125°C, θJA = 100°C/ W (SW)
ORDER PART
NUMBER
LTC1753CG
LTC1753CSW
Consult factory for Industrial and Military grade parts.
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)
SYMBOL PARAMETER
CONDITIONS
MIN TYP
MAX
UNITS
VCC
Supply Voltage
PVCC
Supply Voltage for G1, G2
VFB
Internal Feedback Voltage
1.3V Output Voltage
2.1V Initial Output Voltage
3.5V Initial Output Voltage
q
4.5
6
V
q
13.2
V
0.5
V
0.8
V
1.34
V
VOUT
1.3V Initial Output Voltage
1.8V Initial Output Voltage
2.8V Initial Output Voltage
3.5V Initial Output Voltage
1.3V Initial Output Voltage
1.8V Initial Output Voltage
2.8V Initial Output Voltage
3.5V Initial Output Voltage
With Respect to Rated Output Voltage (Figure 2)
– 20 (– 1.5%)
– 27 (– 1.5%)
– 42 (– 1.5%)
– 52 (– 1.5%)
q – 26 (– 2%)
q – 36 (– 2%)
q – 56 (– 2%)
q – 70 (– 2%)
20 (+ 1.5%)
mV
27 (+ 1.5%)
mV
42 (+ 1.5%)
mV
52 (+ 1.5%)
mV
26 (+ 2%)
mV
36 (+ 2%)
mV
56 (+ 2%)
mV
70 (+ 2%)
mV
∆VOUT
Output Load Regulation
Output Line Regulation
IOUT = 0 to 14A (Figure 2)
VIN = 4.75V to 5.25V, IOUT = 0 (Figure 2)
–5
mV
±1
mV
VPWRGD Positive Power Good Trip Point
% Above Output Voltage (Note 4) (Figure 2)
q
3
6
%
Negative Power Good Trip Point
% Below Output Voltage (Note 4) (Figure 2)
q
–6
–3
%
VFAULT
ICC
FAULT Trip Point
Operating Supply Current
Shutdown Supply Current
% Above Output Voltage (Note 4) (Figure 2)
q
8
13
18
%
OUTEN = VCC = 5V (Note 5)(Figure 3)
q
OUTEN = 0, VID0 to VID4 Floating (Figure 3)
q
800
1200
µA
130
250
µA
IPVCC
Supply Current
PVCC = 12V, OUTEN = VCC (Note 6) (Figure 3)
PVCC = 12V, OUTEN = 0, VID0 to VID4 Floating
15
mA
1
µA
fOSC
Internal Oscillator Frequency
(Figure 4)
q
250
300
350
kHz
VSAWL
VCOMP at Minimum Duty Cycle
(Note 11)
1.8
V
VSAWH
VCOMP at Maximum Duty Cycle
(Note 11)
2.8
V
2
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