ISL78301FVECZ

DATASHEET ISL78301 FN6705 Rev 2.00 40V, Low Quiescent Current, 150mA Linear Regulator for Automotive Applications April 7, 2015 The ISL78301 is a high voltage, low quiescent current linear Features regulator ideally suited for always-on and keep alive Optimized for always-on automotive applications automotive applications. The ISL78301 operates from an input voltage of +6V to +40V under normal operating 18A typical quiescent current conditions and operates down to +3V under a cold crank. It Guaranteed 150mA output current consumes only 18A of quiescent current at no load on the Operates through cold crank down to 3V adjustable version. 40V tolerant logic level (TTL/CMOS) enable input The ISL78301 is available in a fixed 3.3V, 5V and adjustable output voltage (2.5V to 12V) options. It features an EN pin that 2A of typical shutdown current can be used to put the device into a low-quiescent current Low dropout voltage of 295mV at 150mA shutdown mode where it draws only 2A of supply current. The Fixed +3.3V, +5.0V and adjustable output voltage options device features over-temperature shutdown and current limit protection. Stable operation with 10F output capacitor The ISL78301 is AEC-Q100 qualified. It is rated over the -40C Thermal shutdown and current limit protection to +125C automotive temperature range and is available in a -40C to +125C operating temperature range 14 Ld HTSSOP with an exposed pad package. Thermally enhanced 14 Ld exposed pad HTSSOP package Applications AEC-Q100 qualified Automotive 5kV ESD HBM rated Industrial Pb-free (RoHS compliant) Telecommunications V = 14V V = 12V V = 14V V = 5V IN OUT IN OUT OUT OUT IN IN C C OUT CIN COUT IN R1 10F 0.1F 10F 0.1F EN ADJ EN (ISL78301) (ISL78301) R2 GND GND FIGURE 1. TYPICAL APPLICATION - ADJ VERSION FIGURE 2. TYPICAL APPLICATION - FIXED VERSION 25 20 15 10 5 0 -50 0 50 100 150 TEMPERATURE (C) FIGURE 3. QUIESCENT CURRENT vs LOAD CURRENT (ADJ VERSION AT UNITY GAIN) V = 14V IN FN6705 Rev 2.00 Page 1 of 10 April 7, 2015 QUIESCENT CURRENT (A)ISL78301 Block Diagram VIN EN CONTROL LOGIC FET DRIVER + EA WITH CURRENT - LIMIT VOUT REFERENCE THERMAL + SENSOR SOFT-START ADJ GND Pin Configuration ISL78301 (14 LD HTSSOP) TOP VIEW NC 1 14 OUT IN 2 13 NC NC 3 12 ADJ/NC THERMAL NC 4 11 NC PAD NC 5 10 NC NC 6 9 NC EN 7 8 GND Pin Descriptions PIN NUMBER PIN NAME DESCRIPTION 1, 3, 4, 5, 6, 9, 10, NC Pins have internal termination and can be left unconnected. Connection to ground is optional. 11, 13 2 IN Input voltage pin. A minimum 0.1F ceramic capacitor is required for proper operation. 7 EN Enable pin. High on this pin enables the device. 8 GND Ground pin. 12 ADJ/NC In the adjustable output voltage option, this pin is connected to the external feedback resistor divider which sets the LDO output voltage. In the 3.3V and 5V options, this pin is not used and can be connected to ground. 14 OUT Regulated output voltage. A 10F ceramic capacitor is required for stability. EPAD It is recommended to solder the EPAD to the ground plane. FN6705 Rev 2.00 Page 2 of 10 April 7, 2015