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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 12/40頁 |
| 文件大小： | 1350K |
| 代理商： | LM2633MTD |
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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 40C 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
V
uvlo_thr
VIN Under-voltage
Lockout (UVLO)
Threshold
V
uvlo_hys
VIN UVLO Hysteresis
V
uvp1
Channel 1 V
OUT
Under-voltage Shutdown
Latch Threshold
(Measured at the FB1)
V
uvp2, 3
Channels 2 and 3 V
OUT
Undervoltage Shutdown
Latch Threshold
(Measured at the FB2
and FB3)
V
ovp1
V
OUT
Overvoltage
Shutdown Latch
Threshold for Channel 1
(Measured at the FB1)
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
2.5
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
7
10
13
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
Rising Edge
4.2
4.6
V
300
mV
VID4:0 = 01100
72
80
84
%V
OUT
VID4:0 = 01100
75
80
87
%V
OUT
109
114
120
%V
OUT
L
www.national.com
12
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