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参数资料
| 型号： | UPC3540HF |
| 元件分类： | 固定正电压单路输出标准稳压器 |
| 英文描述： | 4 V FIXED POSITIVE REGULATOR, PSFM3 |
| 封装： | PLASTIC, SIP-3 |
| 文件页数： | 3/10页 |
| 文件大小： | 68K |
| 代理商： | UPC3540HF |
Data Sheet G15965EJ2V0DS
2
PC3533, 3504
ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified)
Parameter
Symbol
Rating
Unit
Input Voltage
VIN
0.3 to +25
V
Internal Power Dissipation (TC = 25
°C)
PT
15
Note
W
Operating Ambient Temperature
TA
40 to +85
°C
Operating Junction Temperature
TJ
40 to +150
°C
Storage Temperature
Tstg
55 to +150
°C
Thermal Resistance (junction to case)
Rth(J-C)
7°C/W
Thermal Resistance (junction to ambient)
Rth(J-A)
65
°C/W
Note Internally limited. When the operating junction temperature rises over 150
°C, the internal circuit shuts down the
output voltage.
Caution
Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any
parameter. That is, the absolute maximum ratings are rated values at which the product is on the verge
of suffering physical damage, and therefore the product must be used under conditions that ensure
that the absolute maximum ratings are not exceeded.
TYPICAL CONNECTION
+
D2
D1
CIN
COUT
INPUT
OUTPUT
PC3533, 3504
CIN: 0.1 to 0.47
F or higher. Set this value according to the length of the line between the regulator and INPUT pin. Be
sure to connect CIN 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 CIN is 0.1
F or higher for the voltage and temperature range to be used.
COUT: 0.1
F or higher. Be sure to connect COUT to prevent oscillation and improve excessive load regulation. Place CIN
and COUT 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.
D1: If the OUTPUT pin has a higher voltage than the INPUT pin, connect a diode.
D2: 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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