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LX8221DIDU-TR Datasheet(PDF) 2 Page - Microsemi Corporation |
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LX8221DIDU-TR Datasheet(HTML) 2 Page - Microsemi Corporation |
2 / 9 page Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 Copyright © 2000 Rev. 1.1a, 2006-01-19 LX8221 Dual 150mA CMOS Low Dropout Regulator PRODUCTION DATA SHEET TM ® ABSOLUTE MAXIMUM RATINGS Input Voltage (VIN1, VIN2).......................................................................... -0.3V to +7V Output Current (IOUT1, IOUT2)................................................................................. 150mA Operating Temperature Range .....................................................................-40 to +125 °C Maximum Junction Temperature (TJ) ...................................................................... 150 °C Storage Temperature (TJ) .............................................................................-65 to +150 °C Peak Package Solder Reflow Temp. (40 second max. exposure)................. 260°C (+0, -5) Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified terminal. PACKAGE PIN OUT 1 2 4 3 7 8 10 9 56 VIN1 EN1 GND ADJ VOUT2 VOUT1 CB1 NC EN2 VIN2 DU PACKAGE (Top View) “NC” = No Internal Connection RoHS / Pb-free 100% Matte Tin Lead Finish TH ERMAL DATA DU Plastic MSOP 8-Pin THERMAL RESISTANCE -JUNCTION TO AMBIENT, θ JA 206 °C/W Junction Temperature Calculation: TJ = TA + (PD x θJC). The θJA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. FRONT MARKING 8221 xIDU LX x = Voltage Combination i.e. A = Adj/Adj FUNCTIONAL PIN DESCRIPTION PIN NAME DESCRIPTION VIN1/VIN2 Unregulated input supply voltage GND Ground Pin EN1/EN2 Enable control input: Logic high = Enable; logic low or open = Shutdown CB1 Reference bypass input. Adding an additional external capacitor reduces output noise. VOUT1/VOUT2 Regulated output voltage. Regulator stability is achieved with external capacitor of 1µF ADJ (1, 2) Adjust pin. Connect a resistor divider to this pin to establish preferred output voltage. B L O C K DI A G RAM VOUT1 CB1 GND + - CONTROL LOGIC THERMAL SENSOR CURRENT LIMIT VREF VIN1 EN1 + - CONTROL LOGIC THERMAL SENSOR CURRENT LIMIT VREF VIN2 EN2 ADJ VOUT2 |
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