Integrated Power Management IC (PMIC) w/ 4 DC/DCs, 9 LDOs and RTC in 6x6mm QFN Family - TPS65911


Integrated Power Management IC (PMIC) w/ 4 DC/DCs, 9 LDOs and RTC in 6x6mm QFN Family


The TPS65911 is an integrated power management IC available in 98-pin 0.65-mm pitch BGA package and dedicated to applications powered by one Li-Ion or Li-Ion polymer battery cell or 3-series Ni-MH cells or a 5-V input, and which require multiple power rails. The device provides three step-down converters, one controller for external FETs to support high current rail, eight LDOs, and is designed to be flexible PMIC for supporting different processors and applications.

Two of the step-down converters provide power for dual processor cores and support dynamic voltage scaling by a dedicated I2C interface for optimum power savings. The third converter provides power for the I/Os and memory in the system.

The device includes eight general-purpose LDOs providing a wide range of voltage and current capabilities. Five of the LDOs support 1.0 to 3.3 V with 100-mV step and three (LDO1, LDO2, LDO4) support 1.0 to 3.3 V with 50-mV step. All LDOs are fully controllable by the I2C interface.

In addition to the power resources, the device contains an EPC to manage the power sequencing requirements of systems and an RTC. Power sequencing is programmable by EEPROM.


    The Purpose of the TPS65911 Device is to
    Provide the Following Resources:

  • Embedded Power Controller (EPC) With EEPROM
  • Two Efficient Step-Down DC-DC Converters for
    Processor Cores (VDD1, VDD2)
  • One Efficient Step-Down DC-DC Converter for I/O
    Power (VIO)
  • One Controller for External FETs (VDDCtrl)
  • Dynamic Voltage Scaling for Processor Cores
  • Eight LDO Voltage Regulators and one RTC LDO
    (Supply for Internal RTC)
  • One High-Speed I2C Interface for General-Purpose
    Control Commands (CTL-I2C)
  • Two Independent Enable Signals for Controlling
    Power Resources (EN1, EN2). Alternatively, These
    Pins can be Used as a High-Speed I2C Interface
    Dedicated for Voltage Scaling for VDD1 and
  • Thermal Shutdown Protection and Hot-Die
  • A Real-Time Clock (RTC) Resource With:
    • Oscillator for 32.768-kHz Crystal or 32-kHz
      Built-in RC Oscillator
    • Date, Time, and Calendar
    • Alarm Capability
  • Nine Configurable GPIOs With Multiplexed Feature
    • Four can be used as Enable for External
      Resources, Included into Power-up Sequence
      and Controlled by State Machine.
    • As GPI, GPIOs Support Logic-Level Detection
      and can Generate Maskable Interrupt for Wake-
    • Two of the GPIOs have 10-mA Current Sink
      Capability for Driving LEDs.
    • DC-DC Converters Switching Synchronization
      Through an External 3-MHz Clock.
  • Two Reset Inputs, for Cold Reset (HDRST) and a
    Power Initialization Reset (PWRDN) for Thermal
    Reset Input
  • 32-kHz Clock and Reset (NRESPWRON) for
    System and an Additional Output for Reset Signal
  • Watchdog
  • Two ON and OFF LED Pulse Generators and One
    PWM Generator
  • Two Comparators for System Control, Connected
    to VCCS Pin
  • A JTAG and Boundary Scan, but not Accessible in
    Functional Mode (Test Purpose)

View more

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

Regulated Outputs (#)
Vin (Min) (V)
Vin (Max) (V)
Step-Down DC/DC Controller
Step-Up DC/DC Converter
Step-Down DC/DC Converter
Operating Temperature Range (C)
Approx. Price (US$)
-40 to 85    
3.75 | 1ku    

Related end equipment

  • Portable and Handheld Systems

All trademarks are the property of their respective owners.

Click Here