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R1518J251D-T1-FE Datasheet(PDF) 1 Page - RICOH electronics devices division |
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R1518J251D-T1-FE Datasheet(HTML) 1 Page - RICOH electronics devices division |
1 / 38 page R1518x Series 1 A 36V Input Low Supply Current LDO NO.EA−329−170112 1 OUTLINE R1518x is a CMOS-based LDO that specifically designed for automotive applications featuring 1 A output current and 36 V input voltage. In addition to a conventional regulator circuit, R1518x consists of a constant slope circuit as a soft-start function, a fold-back protection circuit, a short current limit circuit, and a thermal shutdown circuit. Besides the low supply current by CMOS, the operating temperature is −40°C to 105°C and the maximum input voltage is 36 V, the R1518x is very suitable for power source of car accessories. R1518x is available in R1518xxxxB/D/E/F with the internally fixed output voltage, and R1518xxxxD/F with the auto-discharge function at standby. R1518x001C can adjust the output voltage with an external resistor. R1518xxxxB/C/D internally fixes the soft- start time at 120 µs (Typ). R1518xxxxE/F can adjust the soft-start time with an external capacitor. R1518x is available in two packages for ultra high wattage: HSOP-6J and TO-252-5-P2. FEATURES ● Input Voltage Range (Maximum Rating) ·············· 3.5 V to 36.0 V (50.0V) ● Operating Temperature range ··························· 40°C to 105°C ● Supply Current··············································· Typ. 18 µA ● Standby Current············································· Typ. 0.1 µA ● Dropout Voltage ············································· Typ. 0.7 V (IOUT = 1 A, VOUT = 5.0 V) ● Output Voltage Accuracy·································· ±0.8% (VOUT ≤ 5.0 V) ● Line Regulation·············································· Typ. 0.01%/V ● Packages ····················································· HSOP-6J, TO-252-5-P2 ● Output Voltage Range ····································· R1518xxxxB/D/E/F: 2.5V/3.3V/3.4V/5.0V/6.0V/8.5V *Contact Ricoh sales representatives for other voltages. R1518x001C: Adjustable from 2.5 V to 12.0 V with external resistor Feedback Voltage: 2.5 V ● Built-in Short Current Limit Circuit ······················ Typ. 150 mA ● Built-in Fold-Back Protection Circuit···················· Min. 1A ● Built-in Thermal Shutdown Circuit ······················ Typ. 160°C ● Built-in Soft-start Circuit ··································· Typ.120 µs R1518xxxxE/F: Adjustable Time Setting with External Capacitors. ● Ceramic Capacitors can be used ······················· R1518xxxxB/D/E/F: 0.1 µF or more R1518x001C: 1.0 µF or more |
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