LP5996 Datasheet | National Semiconductor

Description The LP5996 is a dual low dropout regulator. The first regulator can source 150m A, while the second is capable of sourcing 300m A. The LP5996 provides 1.5% accuracy requiring an ultra low quiescent current of 35µA. Separate enable pins allow each output of the LP5996 to be shut down, drawing virtually zero current. The LP5996 is designed to be stable with small footprint ceramic capacitors down to 1µF. The LP5996 is available in fixed output voltages and es in a 10 pin, 3mm x 3mm, LLP package. . Key Specifications n n n n Input Voltage Range Low Dropout Voltage Ultra-Low IQ (enabled) Virtually Zero IQ (disabled) 2.0V to 6.0V 210m V at 300m A 35µA < 10n A Package All available in Lead Free option. 10 pin LLP 3mm x 3mm For other package options contact your NSC sales office. Features n 2 LDO Outputs with Independent Enable n 1.5% Accuracy at Room Temperature, 3% over Temperature n Thermal Shutdown Protection n Stable with Ceramic Capacitors Applications n Cellular Handsets n PDA’s n Wireless Network Adaptors Typical Application Circuit © 2006 National Semiconductor Corporation DS201715 .national. .. Functional Block Diagram Pin Descriptions LLP-10 Package Pin No 1 2 3 4 Symbol VIN EN1 EN2 CBYP Name and Function Voltage Supply Input. Connect a 1µF capacitor between this pin and GND. Enable Input to Regulator 1. Active high input. High = On. Low = OFF. Enable Input to Regulator 2. Active high input. High = On. Low = OFF. Internal Voltage Reference Bypass. Connect a 10n F capacitor from this pin to GND to reduce noise and improve line transient and PSRR. This pin may be left open. No Connection. Do not connect to any other pin. mon Ground pin. Connect externally to exposed pad. No Connection. Do not connect to any other pin. No Connection. Do not connect to any other pin. Output of Regulator 2. 300m A maximum current output. Connect a 1µF capacitor between this pin to GND. Output of Regulator 1. 150m A maximum current output....