R5312L

The R5312L series are designed as multi LDO regulators for power management of cellular phones. All of the regulators are low noise and extremely low quiescent current by CMOS process. Each of these ICs consists of eight LDOs, voltage detectors for supply voltage monitoring and two LED drivers.

The R5312L has nine features. (1)Ultra low standby current. (2)High accuracy output voltage and detector threshold. (3)Output voltage and detector threshold. (4)Low temerature-drift-coefficients of output voltage and detector threshold. (5)Low dropout voltage. (6)High ripple rejection. (7)3-wire serial interface. (8)Monitoring supply voltage. (9)Package is QFP 32-pin with 0.5mm lead pitch. Those are all the main features.

Some absolute maximum ratings of R5312L have been concluded into several points as follow. (1)Its supply voltage would be 6.5V. (2)Its input voltage would be from -0.3V to Vdd+0.3V. (3)Its output current for VR1 would be 120mA. (4)Its output current for VR2 would be 100mA. (5)Its output current for VR3 would be 50mA. (6)Its output current for VR4 would be 20mA. (7)Its output current for VR5 would be 50mA. (8)Its output current for VR7 would be 60mA. (9)Its output current for VR8 would be 150mA. (10)Its power dissipation would be 1000mW mounted on a substrate Topt=25°C and would be 500mW in the open air Topt=25°C. (11)Its operating temperature range would be from -40°C to 85°C. (12)Its storage temperature range would be from -55°C to 125°C. (13)Its soldering temperature range would be from 260°C 10 seconds lead. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of R5312L are concluded as follow. (1)Its output voltage would be min 2.94V and yp 3.00V and max 3.06V. (2)Its dropout voltage would be typ 150mV and max 200mV. (3)Its supply current would be typ 80uA and max 160uA. (4)Its current limit would be typ 60mA. (5)Its ripple rejection 1 would be typ 65dB. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!