lm2633mtd National Semiconductor Corporation, lm2633mtd Datasheet - Page 10

• Manufacturer Part Number: lm2633mtd
• Description: Advanced Two-phase Synchronous Triple Regulator Controller For Notebook Cpus
• Manufacturer: National Semiconductor Corporation

www.national.com
Gate Drive (For Channel 2 Switching Regulator Controller)
I
Oscillator
F
T
T
Error Amplifier
I
I
I
I
I
V
Gm
DAC Output and V
V
Linear Regulator Controller
V
V
I
V
boot2
fb1
fb2
fb3
comp1
comp2
g3_sc
Electrical Characteristics
osc
off_min
on_min
V
comp_max
fb2
fb3
g3_sk
g3_max
V
= T
Symbol
dac
CC
J
,
= +15V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for T
= +25˚C. Limits appearing in boldface type apply over 0˚C to +125˚C.
CBOOT Leakage
Current
HDRV2 Source Current
HDRV2 Sink Current
LDRV2 Source Current
LDRV2 Sink Current
HDRV2 FET
On-Resistance
LDRV2 FET
On-Resistance
Oscillator Frequency
Minimum Off-Time
Minimum On-Time
Feedback Input Bias
Current, Channel 1
Feedback Input Bias
Current, Channel 2
Feedback Input Bias
Current, Channel 3
COMP Output Sink
Current
COMP Pin Maximum
Voltage
Transconductance
Channel 1 DAC Output
Voltage Accuracy
Channel 2 DC Output
Voltage Accuracy
Channel 3 DC Output
Voltage Accuracy
G3 Sink Current
G3 Minimum Source
Current
G3 Maximum Voltage
FB2
Parameter
V
V
V
V
V
V
V
V
V
V
V
VCOMP1 = 1V, DAC codes from 1.3V
to 1.6V
VCOMP1 = 1V, DAC codes from
0.925V to 1.25V and from 1.65V to
2.00V
COMP2 pin from 0.5V to 1.8V
CBOOT2
HDRV2
HDRV2
LDRV2
LDRV2
FB1
FB2
FB3
FB1
FB2
COMP1
(Continued)
= 2.4V
= 1.36V
= 1.36V
= 150% of measured 1.4V DAC,
= 150% of measured bandgap,
= 0V
= 5V
= V
= 5V
= V
= 7V
SW2
COMP2
Conditions
=0V, V
= 1V
10
CBOOT2
= 5V
1.217
1.215
−1.5
−1.7
Min
225
tbd
1.238
1.96
1.24
Typ
100
250
400
220
576
tbd
tbd
tbd
tbd
tbd
tbd
3.6
55
18
70
60
20
20
1.259
1.265
Max
275
1.5
1.7
Units
µmho
kHz
mA
nA
µA
nA
nA
µA
µA
ns
ns
%
A
A
A
A
V
V
V
V
A