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参数资料
| 型号： | LM2630MTC-ADJX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | PLASTIC, TSSOP-20 |
| 文件页数： | 7/14页 |
| 文件大小： | 373K |
| 代理商： | LM2630MTC-ADJX |
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Voltages from the indicated
pins to GND and PGND:
V
IN
0.3V to 31V
CBOOT
0.3V to 36V
SD
0.3V to 31V
SW
0.3V to 31V
CSH, CSL
0.3V to 7V
FPWM, SYNC
0.3V to 10V
Power Dissipation (T
A = 70°C),
720mW
Storage Temperature Range
65°C to +150°C
Soldering Dwell Time,
Temperature (Note 3)
Wave
4 sec, 260°C
Infrared
10 sec, 240°C
Vapor Phase
75 sec, 219°C
ESD Rating (Note 4)
1.5 kV
Operating Ratings
V
IN
4.5V to 30V
Junction Temperature
40°C to +125°C
Electrical Characteristics
Specifications in standard type face are for T
j = 25°C and those with boldface type apply over full operating junction temperature
range.
V
IN =10V, GND = PGND = 0V,unless otherwise stated. (Note 5, Note 6)
Symbol
Parameter
Conditions
Typical
Limit
Units
System
V
IN
Input Supply Voltage
4.5
30
V(min)
V(max)
V
OUT
Output Voltage Adjustment
Range
1.8
6.0
V(min)
V(max)
ΔV
OUT/
V
OUT
Load Regulation
0 mV
≤ (CSH-CSL) ≤ 75 mV
0.3
%
ΔV
OUT/
V
OUT
Line Regulation
4.5
≤ V
IN ≤ 30V
0.002
%/V
I
IN
Input Supply Current with the
Switching Controller ON
V
FB = 1V, VCSH = 2.15V, VCSL = 2.1V
0.8
mA
1.2/1.4
mA(max)
Input Supply Current with the
Switching Controller ON
(Internal Rail is Supplied from
CSL Pin)
V
FB = 1V, VCSH = 5.15V, VCSL = 5V
0.15
mA
Input Supply Current with the IC
Shut Down
V
SD = 0V, VIN = 30V
0.1
A
3 (Note 7)
A(max)
Minimum Output Voltage for
CSL Providing the Internal Rail
3
V
I
SS
Soft Start Source Current
V
SS = 1.5V
10
A
5
A(min)
13
A(max)
Soft Start Sink Current
V
SS = 1.5V
20
A
V
CL
Current Limit Voltage (Voltage
from CSH to CSL)
V
FB = 1V, VCSL = 1.8V
110
mV
90/80
mV(min)
130/140
mV(max)
V
IN Undervoltage Shutdown
Latch Threshold
Rising Edge
3.5
V
2.8
V(min)
V
OUT Undervoltage Shutdown
Latch Threshold
80
% V
OUT
65
% V
OUT(min)
V
OUT Low Regulation
Comparator Enable Threshold
97
% V
OUT
Hysteresis of Low Regulation
Comparator
2
% V
OUT
www.national.com
2
100120 Version 9 Revision 2
Print Date/Time: 2011/08/25 17:11:52
LM2630
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