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L4995AJ Datasheet(PDF) 1 Page - STMicroelectronics |
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L4995AJ Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 35 page  This is information on a product in full production. October 2012 Doc ID 13103 Rev 13 1/35 1 L4995 5V, 500mA low drop voltage regulator Datasheet − production data Features ■ 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 (Tj = -40°C to 150°C) ■ Enable (a) input for enabling/disabling the voltage regulator 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. Max DC supply voltage VS 40V Max output voltage tolerance ΔV0 +/-2% Max dropout voltage Vdp 500mV Output current I0 500mA Quiescent current Iqn 3µA(1) 1. Typical value with regulator disabled a. Watchdog and Enable facilities are available according to Device summary table. PowerSSO-12 PowerSSO-24 Table 1. Device summary Package Order codes Tube 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 - www.st.com |
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