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參數(shù)資料
| 型號： | LM3207TL/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.2 A SWITCHING REGULATOR, 2300 kHz SWITCHING FREQ-MAX, PBGA9 |
| 封裝： | ROHS COMPLIANT, MICRO SMD, 9 PIN |
| 文件頁數(shù)： | 18/24頁 |
| 文件大小： | 1601K |
| 代理商： | LM3207TL/NOPB |
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.
PV
IN to SGND
0.2V to +6.0V
PGND to SGND
0.2V to +0.2V
EN, FB, V
CON, ENLDO, LDO
(SGND 0.2V)
to (V
DD +0.2V)
w/6.0V max
SW
(PGND 0.2V)
to (PV
IN +0.2V)
w/6.0V max
PV
IN
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
Operating Ratings (Notes 1, 2)
Input Voltage Range
2.7V to 5.5V
Recommended Load Current
0mA to 650mA
Junction Temperature (T
J) Range
30°C to +125°C
Ambient Temperature (T
A) Range
(Note 4)
30°C to +85°C
Thermal Properties
Junction-to-Ambient Thermal
100°C/W
Resistance (
θ
JA), TLA09 Package
(Note 5)
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 all LM3207 LDO options with: PV
IN = VIN = ENLDO = EN = 3.6V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
LDO
V
LDO
LDO Output Voltage
Iout = 0 mA
+2.6
%
V
LDO,MIN
Minimum LDO Output Voltage Iout = 10mA, PV
IN = 3V
-2.6
%
I
SC
Short circuit current(DC)
V
LDO = 0
50
mA
I
PUT
Pull-up current (transient)
V
LDO = VLDO(nom)/2, PVIN = 3V
(Note 12)
150
mA
I
PD
DC Pull-down current (DC)
V
LDO = PVIN, ENLDO = 0
-50
mA
I
PDT
Pull-down current (transient)
V
LDO = 1.44V, PVIN = 3V
(Note 12)
-200
mA
I
Q_LDO + PWM
DC Bias current into PV
IN
V
CON = 2V, FB = 0V, No Switching,
EN
LDO = EN = 3.6V (Note 9)
1.2
1.6
mA
I
PIN,EN
LDO
LDO Pin pull down current
5
10
uA
Switcher
V
FB, MIN
Feedback Voltage at minimum
setting
V
CON = 0.32V
0.75
0.8
0.85
V
FB, MAX
Feedback Voltage at maximum
setting
V
CON = 1.44V, PVIN = 4.2V
3.537
3.6
3.683
V
I
SHDN
Shutdown supply current
EN = EN
LDO= SW = VCON = 0V,
(Note 8)
0.01
2
A
I
Q_PWM
DC bias current into PV
IN
V
CON = 2V, FB = 0V, ENLDO = 0V ,
EN = 3.6V, No Switching (Note 9)
1.1
1.6
mA
R
DSON(P)
Pin-pin resistance for PFET
I
SW = 200mA
140
200
m
230
R
DSON(N)
Pin-pin resistance for NFET
I
SW = - 200mA
300
415
m
485
I
LIM,PFET
Switch peak current limit
(Note 10)
935
1100
1200
mA
F
OSC
Internal oscillator frequency
1.7
2
2.3
MHz
V
IH,EN
Logic high input threshold
(PWM, LDO)
1.2
V
IL,EN
Logic low input threshold
(PWM, LDO)
0.5
V
I
PIN,EN
PWM Pin pull down current
5
10
A
3
www.national.com
LM3207
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