L4995AKTR Datasheet, PDF (1/35 Pages) STMicroelectronics – 5V, 500mA low drop voltage regulator

L4995
5V, 500mA low drop voltage regulator
Features
Datasheet − production data
Max DC supply voltage
V_S
Max output voltage tolerance
ΔV₀
Max dropout voltage
V_dp
Output current
I₀
Quiescent current
I_qn
1. Typical value with regulator disabled
40V
+/-2%
500mV
500mA
3µA⁽¹⁾
■ 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^(a) timer with external
capacitor
■ Thermal shutdown and short circuit protection
■ Wide temperature range (T_j = -40 °C to 150 °C)
■ Enable^(a) input for enabling/disabling the
voltage regulator
a. Watchdog and Enable facilities are available
according to Device summary table.
PowerSSO-12
PowerSSO-24
Description
L4995 is a family of monolithic integrated 5 V
voltage regulators with a low drop voltage at
currents of up to 500 mA, available in both 12 and
24 pin packages.
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 overtemperature protection switches off the
devices in the case of extremely high power
dissipation. 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.
The combination of such features makes this
device particularly flexible and suitable to supply
microprocessor systems in automotive
applications.
Table 1. Device summary
Package
Tube
Order codes
Tape and reel
PowerSSO-12 (exposed pad)
L4995J - L4995AJ - L4995RJ
L4995JTR - L4995AJTR - L4995RJTR
PowerSSO-24 (exposed pad)
L4995K - L4995AK - L4995RK
L4995KTR - L4995AKTR - L4995RKTR
P/N
Watchdog
Reset
Enable
L4995J - L4995K
X
X
X
L4995AJ - L4995AK
-
X
X
L4995RJ - L4995RK
-
X
-
September 2013
This is information on a product in full production.
Doc ID 13103 Rev 14
1/35
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