lm4510sdx National Semiconductor Corporation, lm4510sdx Datasheet - Page 4

• Manufacturer Part Number: lm4510sdx
• Description: Synchronous Step-up Dc/dc Converter With True Shutdown Isolation
• Manufacturer: National Semiconductor Corporation

www.national.com
Symbol
V
I
R
I
I
I
I
I
f
D
D
Gm
EN
Threshold
I
FB Fault
Protection
UVLO
I
FB
CL
Q
L
VOUT
VL
SW
EN
SS
FB
DS(on)
MAX
MIN
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics
Limits in standard type face are for T
( −40°C
VIN
VOUT
SW (Note 3)
EN, SS, COMP FB
PGND to AGND
Continuous Power Dissipation
(Note 4)
Junction Temperature (T
Storage Temperature Range
(T
Lead Temperature
(Soldering, 10 sec) (Note 5)
ESD Ratings (Note 12)
S
Human Body Model
Machine Model
)
≤
T
Parameter
FB Pin Voltage
FB Pin Bias Current (Note 11)
NMOS Switch R
PMOS Switch R
NMOS Switch Current Limit
Device Switching
Non-switching Current
Shutdown Current
SW Leakage Current (Note
11)
VOUT Bias Current (Note 11) VOUT = 20V
PMOS Switch Leakage
Current
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Error Amplifier
Transconductance
Device Enable
Device Shutdown
EN Pin Bias Current
Feedback Fault Protection
Input Undervoltage Lockout
Soft-Start Pin Current (Note
10)
J
≤
+125°C). Unless otherwise stated the following conditions apply: VIN = 3.6V, EN = 3.6V.
J-MAX
DS(on)
DS(on)
)
J
= 25°C only. Limits in boldface type apply over the full operating junction temperature range
−0.3V to V
Internally Limited
−65°C to +150°C
(Notes 8, 9)
Conditions
2.7V
I
I
EN = 3.6V, FB = COMP
EN = 3.6V, FB > 1.29V
EN = 0V
SW = 20V
SW = 0V, VOUT = 20V
FB = 0V
HIGH
LOW
0 < EN < 3.6V
ON Threshold
OFF Threshold
ON Threshold
OFF Threshold
SW
SW
−0.3V to 6.5V
−0.3V to 6.5V
−0.2V to 0.2V
−0.3V to 21V
= 0.3A
= 0.3A, VOUT = 10V
(Notes 1, 2)
≤
OUT
VIN
150°C
260°C
+0.3V
2.0kV
200V
≤
5.5V
4
Operating Conditions
Thermal Properties
Supply Voltage Range (V
Junction Temperature Range
(T
Ambient Temperature Range
(T
Output Voltage Range (V
Junction to Ambient Thermal
Resistance (θ
Package (Note 7)
J
A
) (Note 6)
)
(Note 8)
1.24
0.85
18.0
17.0
Min
1.0
1.2
2.1
50
88
70
9
JA
) LLP-10
(Note 9)
1.265
0.050
0.002
0.001
0.45
0.01
0.81
0.78
19.7
18.7
2.35
11.3
Typ
130
OUT
0.9
1.2
1.7
0.8
1.0
3.2
2.5
IN
90
94
15
)
)
(Note 8)
0.050
0.150
0.100
Max
1.29
20.7
20.0
2.65
150
200
1.5
1.1
1.1
1.8
2.5
2.0
1.2
0.4
8.0
20
15
−40°C to +125°C
−40°C to +85°C
2.7V to 5.5V
Up to 18V
36°C/W
Units
µmho
MHz
mA
mA
µA
µA
µA
µA
µA
µA
µA
%
%
V
Ω
A
V
V
V