Power Management IC (PMIC)  for Li-Ion Powered Systems - TPS65022

TPS65022 (ACTIVE)

Power Management IC (PMIC) for Li-Ion Powered Systems

 

Description

The TPS65022 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, and which require multiple power rails. The TPS65022 provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O and memory rails in a processor based system.

All three step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. The TPS65022 also integrates two general-purpose 200-mA LDO voltage regulators, which are enabled with an external input pin. Each LDO operates with an input voltage range between 1.5 V and 6.5 V, allowing them to be supplied from one of the step-down converters or directly from the battery.

The default output voltage of the LDOs can be digitally set to 4 different voltage combinations using the DEFLDO1 and DEFLDO2 pins.

The serial interface 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/Standard mode I2C specification, allowing transfers at up to 400 kHz. The TPS65022 is available in a 40-pin (RHA) VQFN package, and operates over a free-air temperature of –40°C to 85°C.

Features

  • 1.2-A, 97% Efficient Step-Down Converter for
    System Voltage (VDCDC1)
  • 1-A, Up to 95% Efficient Step-Down Converter for
    Memory Voltage (VDCDC2)
  • 900-mA, 90% Efficient Step-Down Converter for
    Processor Core (VDCDC3)
  • 30-mA LDO and Switch for Real-Time Clock
    (VRTC)
  • 2 × 200 mA General-Purpose 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 PFM Mode
  • Thermal Shutdown Protection

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

 
Regulated Outputs (#)
Processor Supplier
Processor Name
Vin (Min) (V)
Vin (Max) (V)
Step-Up DC/DC Controller
Step-Down DC/DC Controller
LDO
Step-Up DC/DC Converter
Step-Down DC/DC Converter
Iout (Max) (A)
Iq (Typ) (mA)
Features
Rating
Operating Temperature Range (C)
Pin/Package
TPS65022 TPS65020 TPS65021
6    6    6   
Marvell    Marvell    Marvell
Texas Instruments   
PXA270    PXA270    PXA270
DM320   
1.5    1.5    1.5   
6.5    6.5    6.5   
0    0    0   
0    0    0   
3    3    3   
0    0    0   
3    3    3   
1.2    1.2    1.2   
0.085    0.085    0.085   
Comm Control
Power Good
Power Sequencing   
Comm Control
Power Good
Power Sequencing   
Comm Control
Power Good
Power Sequencing   
Catalog    Catalog    Catalog   
-40 to 85    -40 to 85    -40 to 85   
40VQFN    40VQFN    40VQFN