R1540x Series
High 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 SPECIFICATIONS
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, VCE/ADJ = 5 V)
Output Current 70 mA
Ripple Rejection: Typ. 80 dB (f = 100 Hz)
Protections: Thermal Shutdown, Output Current
Limiting and Short-circuit Current Limiting
PACKAGE
SOT-23-5
2.9 x 2.8 x 1.1 (mm)
HSOP-8E
5.2 x 6.2 x 1.45 (mm)
TYPICAL APPLICATION
VIN
VDD
VOUT
Sensor
VDD
VDD VOUT
LDO
GND
MPU
VDD
VREF
GND
CIN R1540x
CE/ADJ
CCE/ADJ
GND
COUT
SELECTION GUIDE
Product Name
R1540N001B-TR-#E
R1540S001B-E2-#E
CIN: 0.1uF, COUT: 10µF, CCE/ADJ: 0.1uF, Ceramic capacitor
Package
SOT-23-5
HSOP-8E
Quantity per Reel
3,000 pcs
1,000 pcs
APPLICATIONS
Off-board sensors for automotive applications and power supply systems for analog to digital
converters (ADC)
1
