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Automotive 1.5V to 6.5V, 3 Buck & 3 LDO Power Management IC


Package | PIN: RSB | 40
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $5.41
10-24 $4.86
25-99 $4.54
100-249 $4.07
250-499 $3.80
500-749 $3.31
750-999 $2.86
1000+ $2.80


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating TemperatureRange
    • Device HBM ESD Classification Level 2
    • Device CDM ESDClassification Level C4A (RHA Package) or C5 (RSB Package)
  • 1.5 A, 90% Efficient Step-Down Converter for Processor Core (VDCDC1)
  • 1.2 A, Up to 95% Efficient Step-Down Converter for System Voltage (VDCDC2)
  • 1 A, 92% Efficient Step-Down Converter for Memory Voltage (VDCDC3)
  • 30 mA LDO/Switch for Real Time Clock (VRTC)
  • 2 × 200 mA General-Purpose Low Dropout (LDO)
  • Dynamic Voltage Management for Processor Core
  • Preselectable LDO Voltage Using Two Digital Input Pins
  • Externally Adjustable Reset Delay Time
  • Battery Backup Functionality
  • Separate Enable Pins for Inductive Converters
  • I2C-Compatible Serial Interface
  • 85-µA Quiescent Current
  • Low-Ripple Pulse-Frequency Modulation (PFM) Mode
  • Thermal Shutdown Protection

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Texas Instruments  TPS65023QRSBRQ1

The TPS65023-Q1 device is an integrated power-managementintegrated circuit (IC) for applications powered by one Li-Ion or Li-Polymer cell, which requiremultiple power rails. The TPS65023-Q1 device provides three highly efficient, step-down converterstargeted at providing the core voltage, peripheral, input and output (I/O), and memory rails in aprocessor-based system. The core converter allows for on-the-fly voltage changes through a serialinterface, allowing the system to implement dynamic power savings. All three step-down convertersenter a low-power mode at light load for maximum efficiency across the widest possible range ofload currents.

The TPS65023-Q1 device also integrates two general-purpose200-mA LDO voltage regulators, which are enabled with an external input pin. Each LDO operates withan input voltage range between 1.5 V and 6.5 V, allowing them to be supplied from one of thestep-down converters or directly from the battery. The default output voltage of the LDOs can bedigitally set to four different voltage combinations using the DEFLDO1 and DEFLDO2 pins. The serialinterface can be used for dynamic voltage scaling, masking interrupts, or for disabling, enabling,and setting the LDO output voltages. The interface is compatible with the fast- or standard-modeI2C specifications, allowing transfers at up to 400 kHz. The TPS65023-Q1device operates over a free-air temperature of –40°C to 125°C.