參數(shù)資料
型號(hào)： LM2633MTDX/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 275 kHz SWITCHING FREQ-MAX, PDSO48
封裝： TSSOP-48
文件頁數(shù)： 40/40頁
文件大?。?/td> 1350K
代理商： LM2633MTDX/NOPB
Electrical Characteristics (Continued)
V
CC = +15V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for TA
=T
J = +25C. Limits appearing in boldface type apply over 0C to +125C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
SYSTEM
V
uvlo_thr
VIN Under-voltage
Lockout (UVLO)
Threshold
Rising Edge
4.2
4.5
V
uvlo_hys
VIN UVLO Hysteresis
300
mV
V
uvp1
Channel 1 V
OUT
Under-voltage Shutdown
Latch Threshold
(Measured at the FB1)
VID4:0 = 01100
73
80
83
%V
OUT
V
uvp2, 3
Channels 2 and 3 V
OUT
Undervoltage Shutdown
Latch Threshold
(Measured at the FB2
and FB3)
VID4:0 = 01100
76
80
86
%V
OUT
V
ovp1
V
OUT Overvoltage
Shutdown Latch
Threshold for Channel 1
(Measured at the FB1)
110
114
119
%V
OUT
V
ovp2
V
OUT Overvoltage
Shutdown Latch
Threshold for Channel 2
(Measured at the FB2)
109
112
115
%V
OUT
V
lreg_thr
V
OUT Low Regulation
Comparator Enable
Threshold for Channels
1 and 2
91.5
%V
OUT
V
lreg_hys
Hysteresis of Low
Regulation Comparator
7%V
OUT
V
pwrbad
Regulator Window
Detector Thresholds
(PGOOD from High to
Low)
85
88
%V
OUT
110
112
119
V
pwrgd
Regulator Window
Detector Thresholds
(PGOOD from Low to
High)
90
93
97
%V
OUT
Gate Drive (For Channel 1 Switching Regulator Controller)
I
boot1
CBOOT Leakage
Current
V
CBOOT1 =7V
100
nA
HDRV1 Source Current
V
HDRV1 =VSW1 =0V, VCBOOT1 = 5V
1.2
A
HDRV1 Sink Current
V
HDRV1 = 5V
1.0
A
LDRV1 Source Current
V
LDRV1 = 0V
1.2
A
LDRV1 Sink Current
V
LDRV1 = 5V
2.0
A
HDRV1 High-Side FET
On-Resistance
1.84
LDRV1 High-Side FET
On-Resistance
tbd
LDRV1 Low-Side FET
On-Resistance
0.5
LM2633
www.national.com
9
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