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参数资料
| 型号： | LM3102TLX-1 |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PBGA28 |
| 封装： | USMD-28 |
| 文件页数： | 15/20页 |
| 文件大小： | 623K |
| 代理商： | LM3102TLX-1 |
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
VIN, RON to AGND
-0.3V to 43.5V
SW to AGND
-0.3V to 43.5V
SW to AGND (Transient)
-2V (< 100ns)
VIN to SW
-0.3V to 43.5V
BST to SW
-0.3V to 7V
All Other Inputs to AGND
-0.3V to 7V
ESD Rating (Note 2)
Human Body Model
±2kV
Storage Temperature Range
-65°C to +150°C
Junction Temperature (T
J)
150°C
Operating Ratings (Note 1)
Supply Voltage Range (VIN)
4.5V to 42V
Junction Temperature Range (T
J)
40°C to +125°C
Thermal Resistance (
θ
JC) 20 lead
eTSSOP(Note 3)
6.5°C/W
Thermal Resistance (
θ
JA) 20 lead
eTSSOP (Note 5)
30°C/W
Thermal Resistance (
θ
JA) 28 ball
50°C/W
Electrical Characteristics Specifications with standard type are for T
J = 25°C only; limits in boldface type apply
over the full Operating Junction Temperature (T
J) range. Minimum and Maximum limits are guaranteed through test, design, or
statistical correlation. Typical values represent the most likely parametric norm at T
J = 25°C, and are provided for reference
purposes only. Unless otherwise stated the following conditions apply: V
IN = 18V, VOUT = 3.3V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Start-Up Regulator, V
CC
V
CC
V
CC output voltage
C
CC = 680nF, no load
5.0
6.0
7.2
V
IN - VCC
V
IN - VCC dropout voltage
I
CC = 2mA
50
200
mV
I
CC = 20mA
350
570
I
VCCL
V
CC current limit (Note 4)
V
CC = 0V
40
65
mA
V
CC-UVLO
V
CC under-voltage lockout threshold
(UVLO)
V
IN increasing
3.6
3.75
3.9
V
CC-UVLO-HYS
V
CC UVLO hysteresis
V
IN decreasing – TSSOP
package
130
mV
V
CC-UVLO-HYS
V
CC UVLO hysteresis
V
IN decreasing – μSMD
package
150
mV
t
VCC-UVLO-D
V
CC UVLO filter delay
3
s
I
IN
I
IN operating current
No switching, V
FB = 1V
0.7
1
mA
I
IN-SD
I
IN operating current, Device shutdown
V
EN = 0V
25
40
A
Switching Characteristics
R
DS-UP-ON
Main MOSFET R
DS(on)
0.18
0.375
R
DS- DN-ON
Syn. MOSFET R
DS(on)
0.11
0.225
V
G-UVLO
Gate drive voltage UVLO
V
BST - VSW increasing
3.3
4
V
Soft-start
I
SS
SS pin source current
V
SS = 0.5V
6
8
10
A
Current Limit
I
CL
Syn. MOSFET current limit threshold
LM3102
2.7
A
I
CL
Syn. MOSFET current limit threshold
LM3102TLX–1
1.5
A
ON/OFF Timer
t
on
ON timer pulse width
V
IN = 10V, RON = 100 k
1.38
s
V
IN = 30V, RON = 100 k
0.47
t
on-MIN
ON timer minimum pulse width
150
ns
t
off
OFF timer pulse width
260
ns
Enable Input
V
EN
EN Pin input threshold
V
EN rising
1.13
1.18
1.23
V
EN-HYS
Enable threshold hysteresis
V
EN falling
90
mV
Regulation and Over-Voltage Comparator
V
FB
In-regulation feedback voltage
V
SS ≥ 0.8V
T
J = 40°C to +125°C
0.784
0.8
0.816
V
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LM3102
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