Data Sheet G14983EJ5V0DS

4

μPC2918, 2925, 2926

ABSOLUTE MAXIMUM RATINGS (TA = 25

°C, unless otherwise specified)

Rating

Parameter

Symbol

μ PC2918HF, μ PC2925HF,

μ PC2926HF

μ PC2918HB, μ PC2925HB,

μ PC2926HB, μ PC2918T,

μ PC2925T, μ PC2926T

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

+

D2

D1

CIN

COUT

INPUT

OUTPUT

PC2918, 2925, 2926

μ

CIN : 0.1

μ F 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

μ F or higher for the voltage and temperature range to be used.

COUT: 10

μ 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 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.