1.1 Features 1
• Embedded Power Controller (EPC) With EEPROM
Programmability
• 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 (DVS) 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, the EN1 and EN2 Pins can be
Used as a High-Speed I2C Interface Dedicated
for Voltage Scaling for VDD1 and VDD2
• Thermal Shutdown Protection and Hot-Die
Detection
• 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
Support:
– Four can be Used as Enable for External
Resources, Included in Power-Up Sequence
and Controlled by State Machine
– As GPI, GPIOs Support Logic-Level Detection
and can Generate Maskable Interrupt for
Wakeup
– 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:
– Cold Reset (HDRST)
– 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 (Not Accessible in
Functional Mode [Test Purpose])

1.2 Applications
Portable and Hand-Held Systems

1.3 Description
The TPS65911 device is an integrated power management IC (PMIC) available in a 98-pin 0.65-mm pitch
BGA package. The TPS65911 device is dedicated to applications powered by one Li-Ion or Li-Ion polymer
battery cell, 3-series Ni-MH cells, or a 5-V input, and applications that require multiple power rails. The
device provides three step-down converters, one controller for external FETs to support high current rail,
eight LDOs, and the device is designed to be a 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 LDO regulators that provide a wide range of voltage and
current capabilities. Five of the LDO regulators support 1 to 3.3 V with a 100-mV step and three (LDO1,
LDO2, LDO4) support 1.0 to 3.3 V with a 50-mV step. All LDO regulators 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.