LM2636 National Semiconductor, LM2636 Datasheet - Page 4

• Manufacturer Part Number: LM2636
• Description: 5-Bit Programmable Synchronous Buck Regulator Controller
• Manufacturer: National Semiconductor

www.national.com
V
V
G
SR
BW
I
I
D
D
R
R
R
f
I
Q_V CC
Q_BOOTV
OSC
MAX
V
T
Electrical Characteristics
V
BOOTV
DACOUT
MAX
MIN
SENSE
DS_SRC
DS_SINK
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
BOOTV
Junction Temperature
DC Power Dissipation (Note 2)
Storage Temperature
EA
Symbol
(All voltages are referenced to the PGND and SGND pins.)
J
CC
OUT
EA
CC
EA
= +25˚C. Limits appearing in boldface type apply over 0˚C to +70˚C.
= 5V unless otherwise indicated under the Conditions column. Typicals and limits appearing in plain type apply for T
FET Driver Supply
Voltage
5-Bit DAC Output
Voltage
DC Load Regulation
DC Line Regulation
Error Amplifier DC Gain
Error Amplifier Slew
Rate
Error Amplifier Unity
Gain Bandwidth
Operating V
Shutdown V
BOOTV Pin Quiescent
Current
Maximum Duty Cycle
Minimum Duty Cycle
SENSE Pin Resistance
to Ground
FET Driver
Drain-Source ON
Resistance when
Sourcing Current
FET Driver
Drain-Source ON
Resistance when
Sinking Current
Oscillator Frequency
IMAX Pin Sink Current
Parameter
CC
CC
Current
Current
V
VID4:0=01111
VID4:0=01101
VID4:0=01011
VID4:0=01001
VID4:0=00111
VID4:0=00101
VID4:0=00001
VID4:0=11101
VID4:0=11010
VID4:0=10111
I
OUTEN=V
OUTEN Floating, VID0:4 Floating
BOOTV=12V, OUTEN=0, VID0:4
Floating
BOOTV=5V
(Independent of BOOTV Voltage)
R
R
R
V
OUT
IN
IMAX
FA
FA
FA
−65˚C to +150˚C
=4.75V to 5.25V Figure 2
=0 to 14A Figure 2
= 84 k
= 22 k
= 10.5 k
(Note 1)
= 5V, V
CC
1.42W
Conditions
=5V, VID=10111
150˚C
IFB
18V
7V
= 6V, V
4
CC
Soldering Time, Temperature
ESD Susceptibility (Note 3)
Recommended Operating
Conditions
Supply Voltage Range (V
Junction Temperature Range
Wave (4 seconds)
Infrared (10 seconds)
Vapor Phase (75 seconds)
= 5V
1.284
1.385
1.483
1.585
1.683
1.784
1.983
2.173
2.471
2.768
Min
250
130
1.5
(Note 1)
1
7
CC
)
1.304
1.406
1.506
1.609
1.709
1.811
2.013
2.206
2.509
1000
2000
2.81
11.5
Typ
300
180
2.5
1.5
1.7
−5
85
90
1
6
5
4
0
7
1.324
1.427
1.529
1.633
1.735
1.838
2.043
2.239
2.547
2.852
Max
350
230
18
16
4
3
0˚C to +125˚C
4.5V to 5.5V
260˚C
240˚C
219˚C
Units
A
V/µs
MHz
kHz
mV
mA
2 kV
dB
µA
k
µA
%
%
=
V
V