R1540x SeriesHigh Noise Immunity 42 V Input Voltage 70 mA Voltage Tracker for Automotive Applications NO.EC-513-190411 OVERVIEW The R1540x is a voltage tracker featuring input voltage in the range of 3.5 V to 42 V. Highly accurate output voltage which attributes to CE/ADJ pin achieves successful sequence control of the integrated off-board sensor module. Strong enough not to require the circuit to avoid external electromagnetic interference (EMI) and this contributes space saving. KEY BENEFITS Excellent noise immunity provides effective shielding against EMI. Lower stand-by current consumption leads to energy saving of the whole system to prolong battery life. Response to requirements for sequence control in the system with integrated sensors. KEY SPECIFICATIONSPACKAGE Input Voltage Range (Maximum Rating): 3.5 V to 42.0 V (50.0 V) Supply Current: Typ. 60 µA Standby Current: Typ. 0.1 μA Tracking Voltage Range: 2.2 V to 14 V Tracking Voltage Accuracy: ± 15 mV (−40°C ≤ Ta ≤ 125°C, V SOT-23-5HSOP-8E CE/ADJ = 5 V) 2.9 x 2.8 x 1.1 (mm) 5.2 x 6.2 x 1.45 (mm) Output Current 70 mA Ripple Rejection: Typ. 80 dB (f = 100 Hz) Protections: Thermal Shutdown, Output Current Limiting and Short-circuit Current Limiting TYPICAL APPLICATION VIN Sensor VDD VOUT VDD CIN VDD VOUT R1540xLDOMPU GND VDD CE/A DJ GND COUT VREF GND CCE/ADJ CIN: 0.1uF, COUT: 10µF, CCE/ADJ: 0.1uF, Ceramic capacitor SELECTION GUIDEProduct NamePackageQuantity per Reel R1540N001B-TR-#E SOT-23-5 3,000 pcs R1540S001B-E2-#E HSOP-8E 1,000 pcs APPLICATIONS Off-board sensors for automotive applications and power supply systems for analog to digital converters (ADC) 1