L4995 STMICROELECTRONICS [STMicroelectronics], L4995 Datasheet
L4995
Manufacturer Part Number
L4995
Description
5V, 500mA low drop voltage regulator
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.L4995.pdf
(33 pages)
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Features
1. Typical value with regulator disabled
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Description
L4995 is a family of monolithic integrated 5V
voltage regulators with a low drop voltage at
currents of up to 500mA, available in both 12 and
24 pin packages.
Table 1.
a. Watchdog and Enable facilities are available according to
December 2007
Max DC supply voltage
Max output voltage tolerance
Max dropout voltage
Output current
Quiescent current
PowerSSO-12 (exposed pad)
PowerSSO-24 (exposed pad)
Operating DC supply voltage range 5.6V to 31V
Low dropout voltage
Low quiescent current consumption
Reset circuit sensing of output voltage down to 1V
Programmable reset pulse delay with external
capacitor
Programmable watchdog
capacitor
Thermal shutdown and short circuit protection
Wide temperature range (T
Enable
voltage regulator
L4995RJ - L4995RK
L4995AJ - L4995AK
L4995J - L4995K
Package
(a)
P/N
Device summary
input for enabling / disabling the
(a)
j
timer with external
= -40°C to 150°C)
Watchdog
L4995K - L4995AK - L4995RK
L4995J - L4995AJ - L4995RJ
∆V
V
V
I
I
qn
dp
0
X
S
-
-
0
500mV
500mA
3µA
+/-2%
40V
Tube
(1)
5V, 500mA low drop voltage regulator
Table 1: Device summary
Rev 6
Reset
The output voltage regulating element consists of
a p-channel MOS and regulation is performed
regardless of input voltage transients of up to 40V.
The high precision of the output voltage is
obtained using a pre-trimmed reference voltage.
The L4995 family is protected against short circuit
and over-temperature protection switches off the
devices in the case of extremely high power
dissipation.
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The combination of such features makes this
device particularly flexible and suitable to supply
microprocessor systems in automotive
applications.
X
X
X
The L4995 integrates the Watchdog, Enable
and externally programmable Reset circuits.
The L4995A features the externally
programmable Reset and Enable.
Finally the L4995R features the externally
programmable Reset.
Order codes
PowerSSO-12
L4995KTR - L4995AKTR - L4995RKTR
L4995JTR - L4995AJTR - L4995RJTR
Tape & reel
Enable
PowerSSO-24
X
X
-
L4995
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