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參數(shù)資料
| 型號(hào)： | UPC2925 |
| 廠商： | NEC Corp. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | THREE-TERMINAL LOW DROPOUT VOLTAGE REGULATOR |
| 中文描述： | 三端低壓差電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大小： | 420K |
| 代理商： | UPC2925 |
Data Sheet G14983EJ3V0DS
3
μ
PC2918, 2925, 2926
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25°C unless otherwise specified)
Parameter
Symbol
Rating
Unit
Input Voltage
V
IN
–0.3 to +20
V
Internal Power Dissipation (T
C
= 25
°
C)
P
T
10
Note
W
Operating Ambient Temperature
T
A
–30 to +85
°C
Operating Junction Temperature
T
J
–30 to +150
°C
Storage Temperature
T
stg
–55 to +150
°C
Thermal Resistance (junction to case)
R
th(J-C)
12.5
°C/W
Thermal Resistance (junction to ambient)
R
th(J-A)
125
°C/W
Note
Internally limited. When the operating junction temperature rises over 150
°
C, the internal circuit shuts down the
output voltage.
Caution If the absolute maximum rating of any of the above parameters is exceeded even momentarily, the
quality of the product may be degraded. In other words, absolute maximum ratings specify the
values exceeding which the product may be physically damaged. Be sure to use the product with
these ratings never exceeded.
TYPICAL CONNECTION
+
D
2
D
1
C
IN
C
OUT
INPUT
OUTPUT
PC2918, 2925, 2926
μ
C
IN
: 0.1
μ
F or higher. Set this value according to the length of the line between the regulator and INPUT pin. Be sure
to connect C
IN
to prevent parasitic oscillation. Use of a film capacitor or other capacitor with excellent voltage and
temperature characteristics is recommended. If using a laminated ceramic capacitor, it is necessary to ensure
that C
IN
is 0.1
μ
F or higher for the voltage and temperature range to be used.
C
OUT
: 10
μ
F or higher. Be sure to connect C
OUT
to prevent oscillation and improve excessive load regulation. Place
C
IN
and C
OUT
as close as possible to the IC pins (within 2 cm). Also, use an electrolytic capacitor with low
impedance characteristics if considering use at sub-zero temperatures.
D
1
: If the OUTPUT pin has a higher voltage than the INPUT pin, connect a diode.
D
2
: If the OUTPUT pin has a lower voltage than the GND pin, connect a Schottky barrier diode.
Caution Make sure that no voltage is applied to the OUTPUT pin from external.
#
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