LTC1753 LINER [Linear Technology], LTC1753 Datasheet - Page 2

• Manufacturer Part Number: LTC1753
• Description: 5-Bit Programmable Synchronous Switching Regulator Controller for Pentium III Processor
• Manufacturer: LINER [Linear Technology]

ABSOLUTE AXI U RATI GS
LTC1753
(Note 1)
Supply Voltage
Input Voltage
Digital Output Voltage ................................. – 0.3V to 9V
I
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
The
V
SYMBOL
V
PV
V
V
V
V
I
I
f
V
V
ELECTRICAL CHARACTERISTICS
2
CC
PVCC
OSC
FB
CC
FB
OUT
PWRGD
FAULT
SAWL
SAWH
CC
V
CC
OUT
V
PV
I
I
All Other Inputs ...................... – 0.3V to (V
FB
MAX
Input Current (Notes 2, 3) .......................... – 100mA
= 5V, PV
CC
CC
denotes specifications which apply over the full operating temperature range, otherwise specifications are at T
(Note 2) ............................................ PV
........................................................................ 7V
........................................................ – 0.3V to 9V
................................................................... 14V
PARAMETER
Supply Voltage
Supply Voltage for G1, G2
Internal Feedback Voltage
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
Output Load Regulation
Output Line Regulation
Positive Power Good Trip Point
Negative Power Good Trip Point
FAULT Trip Point
Operating Supply Current
Shutdown Supply Current
Supply Current
Internal Oscillator Frequency
V
V
CC
COMP
COMP
= 12V, unless otherwise noted. (Note 3)
at Minimum Duty Cycle
at Maximum Duty Cycle
W
W W
CONDITIONS
1.3V Output Voltage
2.1V Initial Output Voltage
3.5V Initial Output Voltage
With Respect to Rated Output Voltage (Figure 2)
I
V
% Above Output Voltage (Note 4) (Figure 2)
% Below Output Voltage (Note 4) (Figure 2)
% Above Output Voltage (Note 4) (Figure 2)
OUTEN = V
OUTEN = 0, VID0 to VID4 Floating (Figure 3)
PV
PV
(Figure 4)
(Note 11)
(Note 11)
OUT
IN
CC
CC
= 4.75V to 5.25V, I
U
= 0 to 14A (Figure 2)
= 12V, OUTEN = V
= 12V, OUTEN = 0, VID0 to VID4 Floating
CC
CC
CC
+ 0.3V)
+ 0.3V
= 5V (Note 5)(Figure 3)
OUT
CC
PACKAGE/ORDER I FOR ATIO
Consult factory for Industrial and Military grade parts.
= 0 (Figure 2)
(Note 6) (Figure 3)
20-LEAD PLASTIC SSOP
SENSE
COMP
SGND
PV
I
GND
MAX
V
G PACKAGE
T
T
G2
I
SS
CC
CC
FB
JMAX
JMAX
10
1
2
3
4
5
6
7
8
9
= 125 C,
= 125 C,
TOP VIEW
JA
JA
= 100 C/ W (G)
= 100 C/ W (SW)
20-LEAD PLASTIC SO
– 20 (– 1.5%)
– 27 (– 1.5%)
– 42 (– 1.5%)
– 52 (– 1.5%)
SW PACKAGE
– 36 (– 2%)
– 56 (– 2%)
– 70 (– 2%)
– 26 (– 2%)
20
19
18
17
16
15
14
13
12
11
MIN
250
4.5
– 6
8
G1
OUTEN
VID0
VID1
VID2
VID3
VID4
PWRGD
FAULT
V
FB
U
1.34
TYP
800
130
300
0.5
0.8
1.8
2.8
– 5
– 3
13
15
1
1
3
20 (+ 1.5%)
27 (+ 1.5%)
42 (+ 1.5%)
52 (+ 1.5%)
LTC1753CG
LTC1753CSW
ORDER PART
26 (+ 2%)
36 (+ 2%)
56 (+ 2%)
70 (+ 2%)
W
A
1200
MAX
NUMBER
13.2
350
18
250
= 25 C.
6
6
UNITS
U
kHz
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
%
%
%
V
V
V
V
V
A
A
A
V
V