UPC2905AT-T1 查看數據表（PDF） - NEC => Renesas Technology

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UPC2905AT-T1

THREE-TERMINAL LOW DROPOUT VOLTAGE REGULATOR

NEC => Renesas Technology 

µPC29M33A,µPC29M05A

ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified)

Parameter

Symbol

Input Voltage

VIN

Internal Power Dissipation Note(TC = 25°C) PT

Operating Ambient Temperature

TA

Operating Junction Temperature

TJ

Storage Temperature

Tstg

Thermal Resistance (junction to case)

Rth(J-C)

Thermal Resistance (junction to ambient) Rth(J-A)

Rating

µ PC29M33AHF,

µ PC29M05AHF

µPC29M33AHB, µPC29M05AHB

µPC29M33AT, µPC29M05AT

20

15

10

–30 to +85

–30 to +150

–55 to +150

7

12.5

65

125

Unit

V

W

°C

°C

°C

°C/W

°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.

STANDARD CONNECTION

D1

INPUT

CIN

PC29M33A, PC29M05A

+

COUT

OUTPUT

D2

CIN: 0.1 µF 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 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 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.

4

Data Sheet G15368EJ1V0DS

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