參數(shù)資料
型號(hào)： LM2633MTD
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Advanced Two-Phase Synchronous Triple Regulator Controller for Notebook CPUs
中文描述： SWITCHING CONTROLLER, 275 kHz SWITCHING FREQ-MAX, PDSO48
封裝： TSSOP-48
文件頁(yè)數(shù)： 8/40頁(yè)
文件大?。?/td> 1350K
代理商： LM2633MTD
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 11)
Voltages from the indicated pins to GND/PGND:
VIN, KS1, KS2, SW1, SW2
ILIM1, ILIM2
VID0-VID4
VLIN, VDD1, VDD2, PGOOD
FB1, FB2, SENSE2, G3, FB3, OUT3
CBOOT1
CBOOT2
ON/SS1, ON/SS2
FPWM
Power Dissipation (T
A
= 25C),
(Note 12)
Junction Temperature
0.3V to 31V
0.3V to 31V
0.3V to 5V
0.3V to 6V
0.3V to 6V
0.3V to SW1+ 7V
0.3V to SW2+ 7V
0.3V to 5V
0.3V to 7V
1.56W
+150C
ESD Rating (Note 14)
Ambient Storage Temperature
Range
Soldering Dwell Time, Temperature (Note 13)
Wave
Infrared
Vapor Phase
2kV
65C to +150C
4 sec, 260C
10sec, 240C
75sec, 219C
Operating Ratings
(Note 11)
VIN (VIN and VLIN5 tied
together)
VIN (VIN and VLIN5 separate)
Junction Temperature 1
Junction Temperature 2
VDD1, VDD2
4.5V to 5.5V
5.0V to 30V
0C to +125C
40C to +125C
4.5V to 5.5V
Electrical Characteristics
V
= +15V unless otherwise indicated under the
Conditions
column. Typicals and limits appearing in plain type apply for T
A
= T
J
= +25C. Limits appearing in
boldface
type apply over 0C to +125C.
Symbol
Parameter
Conditions
SYSTEM
V
out1_load
Channel 1 Load
Regulation (Note 17)
VID4:0=01101
V
out2_load
Channel 2 Load
Regulation (Note 17)
V
fb
Line Regulation (for the
two switching regulators)
I
vin
Input Supply Current
with the Switching
Channels ON
I
vin_sd
Input Supply Current
with the IC Shut Down
(Note 19)
V
vlin5
VLIN5 Output Voltage
30V
I
ilim_pos
ILIM1 and ILIM2 Pins
Sink Current
V
ilim_neg
Negative Current Limit
(SWx vs PGNDx
voltage)
I
ss_sc
Soft Start Charge
Current
I
ss_sk
Soft Start Sink Current
In UVLO or thermal shutdown
V
ss_on
Soft Start ON Threshold
V
ssto
Soft Start Timeout
Threshold
V
uvd
UV_DELAY Threshold
VLIN5 = 5V (Note 21)
I
delay
UV_DELAY Source
Current
I
vid
VID4:0 Internal Pull Up
Current
Min
Typ
Max
Units
V
COMP1
moves from 0.5V to 1.5V,
0
mV
V
COMP2
moves from 0.5V to 1.5V
1.5
mV
5.0V
≤
VIN
≤
30V, VID4:0=01101
2
mV
V
FB
= 0.9V, no VLIN5 DC Current
(Note 18)
1.5
2.4
mA
V
ON/SS1
= V
ON/SS2
= 0V
10
18
μA
I
VLIN5
= 0 to 25mA, 5.5V
<
VIN
<
4.7
5.0
5.3
V
8
10
12
μA
45
mV
0.5
2.25
5
μA
2
μA
V
1.2
(Note 20)
3.5
V
2.1
V
1.0
5
9.0
μA
6
13
μA
L
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