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): 10/40頁
文件大?。?/td> 1350K
代理商: LM2633MTD
Electrical Characteristics
(Continued)
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
Gate Drive (For Channel 2 Switching Regulator Controller)
I
boot2
CBOOT Leakage
Current
HDRV2 Source Current
V
HDRV2
= V
SW2
=0V, V
CBOOT2
= 5V
HDRV2 Sink Current
V
HDRV2
= 5V
LDRV2 Source Current
V
LDRV2
= 0V
LDRV2 Sink Current
V
LDRV2
= 5V
HDRV2 FET
On-Resistance
LDRV2 FET
On-Resistance
Oscillator
F
osc
Oscillator Frequency
T
off_min
Minimum Off-Time
T
on_min
Minimum On-Time
Error Amplifier
I
fb1
Feedback Input Bias
Current, Channel 1
I
fb2
Feedback Input Bias
Current, Channel 2
I
fb3
Feedback Input Bias
Current, Channel 3
I
comp1
,
I
comp2
Current
V
FB2
= 150% of measured bandgap,
V
COMP1
= V
COMP2
= 1V
V
comp_max
COMP Pin Maximum
Voltage
Gm
Transconductance
DAC Output and V
FB2
V
dac
Channel 1 DAC Output
Voltage Accuracy
to 1.6V
VCOMP1 = 1V, DAC codes from
0.925V to 1.25V and from 1.65V to
2.00V
V
fb2
Channel 2 DC Output
Voltage Accuracy
Linear Regulator Controller
V
fb3
Channel 3 DC Output
Voltage Accuracy
V
g3_sk
G3 Sink Current
I
g3_sc
G3 Minimum Source
Current
V
g3_max
G3 Maximum Voltage
Min
Typ
Max
Units
V
CBOOT2
= 7V
100
nA
tbd
tbd
tbd
tbd
A
A
A
A
tbd
tbd
225
250
400
220
275
kHz
ns
ns
V
FB1
= 2.4V
55
μA
V
FB2
= 1.36V
18
nA
V
FB3
= 1.36V
70
nA
COMP Output Sink
V
FB1
= 150% of measured 1.4V DAC,
60
μA
tbd
1.96
V
576
μmho
VCOMP1 = 1V, DAC codes from 1.3V
1.5
1.5
%
1.7
1.7
COMP2 pin from 0.5V to 1.8V
1.217
1.238
1.259
V
1.215
1.24
1.265
V
20
μA
20
mA
3.6
V
L
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