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參數(shù)資料
| 型號： | LM3218SE |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, DSO8 |
| 封裝： | LTCC-8 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 4709K |
| 代理商： | LM3218SE |
Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
V
DD, PVIN to SGND
0.2V to +6.0V
PGND to SGND
0.2V to +0.2V
EN, FB, V
CON
(SGND 0.2V)
to (V
DD +0.2V)
w/6.0V max
V
OUT
(PGND 0.2V)
to (PV
IN +0.2V)
w/6.0V max
PV
IN to VDD
0.2V to +0.2V
Continuous Power Dissipation
(Note 3)
Internally Limited
Junction Temperature (T
J-MAX)
+150°C
Storage Temperature Range
65°C to +150°C
Maximum Lead Temperature
(Soldering, 10 sec.)
+260°C
ESD Rating (Notes 4, 13)
Human Body Model:
Machine Model:
2000V
200V
Operating Ratings (Notes 1, 2)
Input Voltage Range
2.7V to 5.5V
Recommended Load Current
0 mA to 650 mA
Junction Temperature (T
J) Range
30°C to +125°C
Ambient Temperature (T
A) Range
(Note 5)
30°C to +85°C
Thermal Properties
Junction-to-Ambient Thermal
120°C/W
Resistance (
θ
JA), TLP08 Package
(Note 6)
Electrical Characteristics (Notes 2, 7, 8) Limits in standard typeface are for T
A = TJ = 25°C. Limits in
boldface
type apply over the full operating ambient temperature range (30°C
≤ T
A = TJ ≤ +85°C). Unless otherwise noted, all
specifications apply to the LM3218 with: PV
IN = VDD = EN = 3.6V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
FB, MIN
Feedback voltage at minimum
setting
V
0.75
0.80
0.85
V
FB, MAX
Feedback voltage at maximum
setting
V
3.526
3.600
3.696
V
I
SHDN
Shutdown supply current
EN = V
OUT = VCON = 0V,
(Note 9)
0.01
2
A
I
Q
DC bias current into V
DD
V
CON = 0V, FB = 0V,
No Switching (Note 10)
0.6
0.7
mA
R
DROPOUT
Pin
Vout - PinVin resistance
I
OUT = 200mA, VCON = 0.5V
300
400
m
I
LIM
(L_PFET)
Large PFET (L) Switch peak
current limit
V
CON = 0.5V (Note 11)
1100
mA
I
LIM
(S_PFET)
Small PFET (S) Switch peak
current limit
V
CON = 0.32V (Note 11)
800
mA
F
OSC
Internal oscillator frequency
2.0
MHz
V
IH,ENABLE Logic high input threshold
1.2
V
IL,ENABLE
Logic low input threshold
0.5
V
I
PIN,ENABL
E
Pin pull down current
EN = 3.6V
5
10
A
V
CON,ON
V
CON Threshold for turning on
switches
0.15
V
I
CON
V
CON pin leakage current
V
CON = 1.0V
±1
A
Gain
V
CON to VOUT Gain
0.32V
≤ V
CON ≤ 1.44V
2.5
V/V
3
www.national.com
LM3218
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| LM321H | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM221/LM321 Precision Preamplifiers |
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