参数资料
型号: UPC2905AHB-AZ
元件分类: 固定正电压单路输出LDO稳压器
英文描述: 5 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, SIP3
封装: LEAD FREE, SC-64, 3 PIN
文件页数: 8/14页
文件大小: 271K
代理商: UPC2905AHB-AZ
μPC2933A,2905A
Chapter Title
R03DS0029EJ0400 Rev.4.00
Page 3 of 12
Mar 16, 2011
Absolute Maximum Ratings (T
A = 25°C)
Rating
Parameter
Symbol
μ PC2933AHF, 2905AHF
μ PC2933AHB, 2905AHB
μ PC2933AT, 2905AT
Unit
Input Voltage
VIN
20
V
Internal Power Dissipation (TC = 25
°C)
Note
PT
15
10
W
Operating Ambient Temperature
TA
30 to +85
°C
Operating Junction Temperature
TJ
30 to +150
°C
Storage Temperature
Tstg
55 to +150
°C
Thermal Resistance (junction to case)
Rth(J-C)
7
12.5
°C/W
Thermal Resistance (junction to ambient)
Rth(J-A)
65
125
°C/W
Note Internally limited. When the operating junction temperature rises above 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
INPUT
CIN
PC2933A, 2905A
OUTPUT
COUT
D1
D2
μ
+
CIN
: 0.1
μF or higher. Be sure to connect CIN to prevent parasitic oscillation. Set this value according to the length
of the line between the regulator and the INPUT pin. Use of a film capacitor or other capacitor with first-rate
voltage and temperature characteristics is recommended.
If using a laminated ceramic capacitor, it is
necessary to ensure that CIN is 0.1
μF or higher for the voltage and temperature range to be used.
COUT
: 47
μF 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 1 to 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.
相关PDF资料
PDF描述
UPC2905AHF-AZ 5 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSFM3
UPC2905AT-E1-AY 5 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO2
UPC2905AT-E1-AZ 5 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO2
UPC2905AT-E2-AY 5 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO2
UPC2905AT-E1 5 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PSSO2
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