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參數(shù)資料
| 型號(hào)： | LMC7660IN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Switched Capacitor Voltage Converter |
| 中文描述： | SWITCHED CAPACITOR CONVERTER, 10 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁(yè)數(shù)： | 2/12頁(yè) |
| 文件大小： | 134K |
| 代理商： | LMC7660IN |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Input Voltage on Pin 6, 7
(Note 2)
10.5V
0.3V to (V
+
+ 0.3V)
for V
+
<
5.5V
(V
+
5.5V) to (V
+
+ 0.3V)
for V
+
>
5.5V
Current into Pin 6 (Note 2)
Output Short Circuit
Duration (V
+
≤
5.5V)
20 μA
Continuous
Power Dissipation (Note 3)
Dual-In-Line Package
Surface-Mount Package
T
J
Max (Note 3)
θ
JA
(Note 3)
Dual-In-Line Package
Surface-Mount Package
Storage Temp. Range
Lead Temperature
(Soldering, 5 sec.)
ESD Tolerance (Note 7)
1.4W
0.6W
150C
90C/W
160C/W
65C
≤
T
≤
150C
260C
±
2000V
Electrical Characteristics
(Note 4)
Symbol
Parameter
Conditions
Typ
LMC7660IN/
LMC7660IM
Limit
(Note 5)
200
400
3 to 10
3 to 10
1.5 to 3.5
1.5 to 3.5
100
120
200
300
Units
Limits
I
s
Supply Current
R
L
=
∞
120
μA
max
V
V
+
H
Supply Voltage
Range High (Note 6)
Supply Voltage
Range Low
Output Source
Resistance
R
L
= 10 k
, Pin 6 Open
Voltage Efficiency
≥
90%
R
L
= 10 k
, Pin 6 to Gnd.
Voltage Efficiency
≥
90%
I
L
= 20 mA
3 to 10
V
+
L
1.5 to 3.5
V
R
out
55
max
max
kHz
V = 2V, I
L
= 3 mA
Pin 6 Short to Gnd.
110
F
osc
Oscillator
Frequency
Power Efficiency
10
P
eff
R
L
= 5 k
97
95
90
97
95
%
min
%
min
μA
V
o eff
Voltage Conversion
Efficiency
Oscillator Sink or
Source Current
R
L
=
∞
99.9
I
osc
Pin 7 = Gnd. or V
+
3
Note 1:
Absolute Maximum ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its rated operating conditions. See Note 4 for conditions.
Note 2:
Connecting any input terminal to voltages greater than V
+
or less than ground may cause destructive latchup. It is recommended that no inputs from sources
operating from external supplies be applied prior to “power-up” of the LMC7660.
Note 3:
For operation at elevated temperature, these devices must be derated based on a thermal resistance of
θ
ja
and T
j
max, T
j
= T
A
+
θ
ja
P
D
.
Note 4:
Boldface numbers apply at temperature extremes. All other numbers apply at T
A
= 25C, V
+
= 5V, C
osc
= 0, and apply for the LMC7660 unless otherwise
specified. Test circuit is shown in Figure 1 .
Note 5:
Limits at room temperature are guaranteed and 100% production tested. Limits in
boldface
are guaranteed over the operating temperature range (but not
100% tested), and are not used to calculate outgoing quality levels.
Note 6:
The LMC7660 can operate without an external diode over the full temperature and voltage range. The LMC7660 can also be used with the external diode
Dx, when replacing previous 7660 designs.
Note 7:
The test circuit consists of the human body model of 100 pF in series with 1500
.
www.national.com
2
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