lm2711 National Semiconductor Corporation, lm2711 Datasheet - Page 5

• Manufacturer Part Number: lm2711
• Description: Step-up Pwm Dc/dc Converter Integrated With 4 Buffers
• Manufacturer: National Semiconductor Corporation

Switching Regulator
I
V
%V
I
R
I
V
I
T
g
A
D
f
I
SHDN
I
UVP
Q
CL
B
SS
S
L
m
SHDN
SS
FB
IN
V
DSON
MAX
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Specifications in standard type face are for T
ture Range ( T
Symbol
V
V
FB Voltage
V
SHDN Voltage
FSLCT Voltage
Supply Voltage, Vs+
Buffer Input Voltage
Buffer Output Voltage
FB
IN
SW
C
/∆V
Voltage
Voltage
IN
Quiescent Current
Feedback Voltage
Feedback Voltage Line
Regulation
Switch Current Limit
(Note 6)
Switch R
FB Pin Bias Current(Note 8)
Input Voltage Range
Soft Start Current
Internal Soft Start Ramp
Time
Error Amp Transconductance ∆I = 5µA
Error Amp Voltage Gain
Maximum Duty Cycle
Switching Frequency
Switch Leakage Current
SHDN Threshold
Shutdown Pin Current
On Threshold
Off Threshold
Hysteresis
J
= −40˚C to +125˚C). Unless otherwise specified, V
DSON
Parameter
(Note 7)
0.965V to 1.565V
Not Switching, FSCLT = 0V
Not Switching, FSCLT = V
Switching, FSCLT = 0V
Switching, FSCLT = V
Shutdown mode
V
V
FSLCT = 0V
FSLCT = 0V
FSLCT = V
V
Output High
Output Low
0V ≤ SHDN ≤ V
IN
IN
SW
-0.3V to 7.5V
J
AGND to V
-0.3V to 18V
-0.3V to 12V
-0.3V to V
= 25˚C and those with boldface type apply over the full Operating Tempera-
-0.3V to 7V
(Note 2)
= 2.5V, V
= 2.7V
Rail-to-Rail
Rail-to-Rail
= 17V
Conditions
IN
IN
IN
OUT
IN
= 8V
5
IN
Operating Conditions
IN
ESD Ratings
(Note 3)
Operating Temperature
Storage Temperature
Supply Voltage, V
V
Supply Gamma Buffer, Vs+
SW
IN
Human Body Model
Machine Model
=2.2V and Vs+ = 8V, Rox = 50Ω, Cox = 1nF.
Voltage
(Note 4)
1.239
0.85
Min
500
2.2
0.9
1.8
1.7
60
78
5
IN
(Note 5)
1.265
0.185
1.65
0.03
1.25
Typ
170
135
135
600
100
1.6
2.5
3.4
1.4
6.7
0.6
0.6
0.5
1.9
1.8
30
11
85
6
(Note 4)
1.291
Max
0.05
250
700
2.2
7.5
1.5
0.3
1.9
15
90
15
10
20
2
3
4
1
2
−40˚C to +125˚C
−65˚C to +150˚C
2.2V to 7.5V
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4V to 12V
Units
µmho
MHz
200V
%/V
kHz
mΩ
V/V
mA
mS
mV
µA
nA
µA
µA
µA
%
17V
2kV
V
A
V
V
V
V
V