Ultra-Low Power Management IC (PMIC) - TPS65290


Ultra-Low Power Management IC (PMIC)



The TPS65290 device is a power-managemant integrated circuit (PMIC) designed to operate in applications dependent on efficient power management over a wide range of system load conditions ranging from fractions of a microamp to a few hundred milliamps. The device operates over a wide 2.2-V to 5-V input-voltage range and incorporates a very low-quiescent-current always-on power supply, a 500-mA buck-and-boost converter, a 150-mA low-dropout regulator (LDO) and eight power-distribution switches. The always-on supply features three different factory selectable options: 30-mA buck converter with 300-nA quiescent current, 10-mA LDO with 400-nA quiescent current, and 10-mA zero IDDQ drop with 100-nA quiescent current. The buck-boost converter employs PFM or PWM operation with forced PWM option, for maximum overall efficiency. A designer can use the switches to support different configurations for the various loads supported by the TPS65290 device. For energy-harvesting applications, the device integrates a programmable input-voltage monitor to allow for connection and disconnection of the different power blocks and switches without the intervention of the master processor.

To maximize control flexibility, the TPS65290 device includes a factory-selectable choice between SPI and I2C interfaces. To minimize PC board footprint and reduce bill of materials (BOM) components and cost, the PMIC internally includes resistive dividers (boost-buck, LDO, VIN monitor), I2C pullup resistors, SPI pulldown resistors, boost-buck compensation, and an interrupt pullup resistor. Completion of a comprehensive multi-rail solution for efficient flow meter, handheld industrial, fitness, and other long-term data-acquisition systems requires only low-cost ceramic capacitors and power inductors.


  • Operating Input Voltage Range: 2.2 V to 5 V
  • 500-mA Buck-Boost Converter, Stand-Alone Operation or Serial-Bus Controlled
  • PFM/PWM Operation With Forced PWM Option
  • 150-mA LDO
  • Stand-Alone or Serial-Bus (SPI or I2C) Controlled
  • Two Power Distribution Switches Powered From Buck-Boost Output
  • One Power Distribution Switch Powered From the Maximum of Buck Boost or Battery Input
  • Two Power Distribution Switches Powered From LDO Output
  • One Power Switch Powered From Battery Input
  • One Power Switch to Connect BB Output to LDO Output and Improve System Efficiency
  • Automaticly Maximize System Energy Management With the internal MAX block
  • Low-Power Always-On Bias Supply for Microcontroller Sleep Mode With Three Factory-Selectable Options:
    • 10-mA, 100-nA IDDQ Deep-Sleep Zero-Leakage-Current Bias Controller With Preset Voltage
    • 10-mA, 400-nA IDDQ LDOMINI
    • 30-mA, 300-nA IDQQ BuckMINI
  • Input Voltage Recovery Comparator With Selectable Threshold
  • Factory Selectable SPI or I2C Interface
  • –40°C to 85°C Ambient Temperature Range
  • 24-Pin RHF (VQFN) Package

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Parametrics Compare all products in Power Management Multi-Channel IC (PMIC) Solutions

Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Iout (Max) (A)
Iq (Typ) (mA)
Special Features
Shutdown Current (Typ) (uA)
Operating Temperature Range (C)
Comm Control
Dynamic Voltage Scaling
Power Good
Thermal Shutdown   
-40 to 85