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LM2633 Scheda tecnica(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Il numero della parte LM2633
Spiegazioni elettronici  Advanced Two-Phase Synchronous Triple Regulator Controller for Notebook CPUs
Download  40 Pages
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Produttore elettronici  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2633 Scheda tecnica(HTML) 8 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Note 11)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Voltages from the indicated pins to GND/PGND:
VIN, KS1, KS2, SW1, SW2
−0.3V to 31V
ILIM1, ILIM2
−0.3V to 31V
VID0-VID4
−0.3V to 5V
VLIN, VDD1, VDD2, PGOOD
−0.3V to 6V
FB1, FB2, SENSE2, G3, FB3, OUT3
−0.3V to 6V
CBOOT1
−0.3V to SW1+ 7V
CBOOT2
−0.3V to SW2+ 7V
ON/SS1, ON/SS2
−0.3V to 5V
FPWM
−0.3V to 7V
Power Dissipation (T
A = 25˚C),
(Note 12)
1.56W
Junction Temperature
+150˚C
ESD Rating (Note 14)
2kV
Ambient Storage Temperature
Range
−65˚C to +150˚C
Soldering Dwell Time, Temperature (Note 13)
Wave
Infrared
Vapor Phase
4 sec, 260˚C
10sec, 240˚C
75sec, 219˚C
Operating Ratings(Note 11)
VIN (VIN and VLIN5 tied
together)
4.5V to 5.5V
VIN (VIN and VLIN5 separate)
5.0V to 30V
Junction Temperature 1
0˚C to +125˚C
Junction Temperature 2
−40˚C to +125˚C
VDD1, VDD2
4.5V to 5.5V
Electrical Characteristics
V
CC = +15V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for TA
=T
J = +25˚C. Limits appearing in boldface type apply over 0˚C to +125˚C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM
∆V
out1_load
Channel 1 Load
Regulation (Note 17)
V
COMP1 moves from 0.5V to 1.5V,
VID4:0=01101
0mV
∆V
out2_load
Channel 2 Load
Regulation (Note 17)
V
COMP2 moves from 0.5V to 1.5V
1.5
mV
∆V
fb
Line Regulation (for the
two switching regulators)
5.0V
≤ VIN ≤ 30V, VID4:0=01101
2mV
I
vin
Input Supply Current
with the Switching
Channels ON
V
FB = 0.9V, no VLIN5 DC Current
(Note 18)
1.5
2.4
mA
I
vin_sd
Input Supply Current
with the IC Shut Down
V
ON/SS1 =VON/SS2 =0V
(Note 19)
10
18
µA
V
vlin5
VLIN5 Output Voltage
I
VLIN5 = 0 to 25mA, 5.5V < VIN <
30V
4.7
5.0
5.3
V
I
ilim_pos
ILIM1 and ILIM2 Pins
Sink Current
8
10
12
µA
V
ilim_neg
Negative Current Limit
(SWx vs PGNDx
voltage)
45
mV
I
ss_sc
Soft Start Charge
Current
0.5
2.25
5
µA
I
ss_sk
Soft Start Sink Current
In UVLO or thermal shutdown
2
µA
V
ss_on
Soft Start ON Threshold
1.2
V
V
ssto
Soft Start Timeout
Threshold
(Note 20)
3.5
V
V
uvd
UV_DELAY Threshold
VLIN5 = 5V (Note 21)
2.1
V
I
delay
UV_DELAY Source
Current
1.0
5
9.0
µA
I
vid
VID4:0 Internal Pull Up
Current
613
µA
www.national.com
8


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