Specifications
| Type | Description |
|---|---|
| Part Number | TPS65911 |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package Case | BGA MicroStar Junior, 98 pins, 0.65-mm pitch, 9.00 mm x 6.00 mm nominal body |
| Component Type | Power_IC |
| Power Management Function | Integrated PMIC with multiple power rails; for processor and portable system power sequencing |
| Input Power Sources | 1 Li-Ion or Li-Ion polymer cell, 3-series Ni-MH cells, or 5-V input; supported application power sources |
| Step-Down DC-DC Converters | 3 converters; two for processor cores and one for I/O power |
| Processor Core Converters | VDD1 and VDD2; efficient step-down converters for processor cores |
| I/O Power Converter | VIO; efficient step-down converter for I/O power |
| External FET Controller | VDDCtrl; controller for external FETs to support high-current rail |
| Dynamic Voltage Scaling | Supported; for processor cores VDD1 and VDD2 |
| Dedicated Voltage Scaling Interface | High-speed I2C; alternative use of EN1 and EN2 pins for VDD1 and VDD2 voltage scaling |
| General Control Interface | High-speed I2C interface; general-purpose control commands, CTL-I2C |
| LDO Regulators | 8 general-purpose LDOs plus 1 RTC LDO; integrated regulator resources |
| LDO Voltage Range | 1.0 V to 3.3 V; five LDO regulators, 100-mV step |
| LDO1/LDO2/LDO4 Voltage Range | 1.0 V to 3.3 V; LDO1, LDO2, and LDO4 with 50-mV step |
| LDO Control | Fully controllable by I2C; all LDO regulators |
| VDD1 Output Current | 1.5 A; output voltage 0.6 V to 2.2 V |
| VDD2 Output Current | 1.5 A; output voltage 0.6 V to 1.5 V |
| VDD1 Feedback Voltage Range | 0.6 V to 3.3 V; VFB1 shown in functional block diagram |
| VDD2 Feedback Voltage Range | 0.6 V to 3.3 V; VFB2 shown in functional block diagram |
| VIO Output Voltage and Current | 1.3 A at 1.5 V; 1.2 A at 1.8 V; 1.1 A at 2.5 V and 3.3 V; VIO SMPS output capability |
| VDDCtrl Output Voltage Range | 0.6 V to 1.4 V; controller output shown in functional block diagram |
| LDO3 Output Current | 200 mA; LDO3, 1.0 V to 3.3 V, 100-mV step |
| LDO4 Output Current | 320 mA; LDO4, 1.0 V to 3.3 V, 50-mV step |
| LDO5 Output Current | 300 mA; LDO5, 1.0 V to 3.3 V, 100-mV step |
| LDO6 Output Current | 300 mA; LDO6, 1.0 V to 3.3 V, 100-mV step |
| LDO7 Output Current | 300 mA; LDO7, 1.0 V to 3.3 V, 100-mV step |
| LDO8 Output Current | 300 mA; LDO8, 1.0 V to 3.3 V, 100-mV step |
| LDO1 Voltage Step | 50 mV; LDO1 voltage range 1.0 V to 3.3 V |
| LDO2 Voltage Step | 50 mV; LDO2 voltage range 1.0 V to 3.3 V |
| GPIO Count | 9 configurable GPIOs; multiplexed feature support |
| GPIO External Resource Enable | 4 GPIOs; can be used as enables for external resources, included in power-up sequence and controlled by state machine |
| GPIO LED Sink Capability | 2 GPIOs, 10 mA current sink; for driving LEDs |
| Clock Synchronization Input | 3 MHz external clock; DC-DC converter switching synchronization |
| RTC Clock Sources | 32.768-kHz crystal oscillator or 32-kHz built-in RC oscillator; real-time clock resource |
| RTC Functions | Date, time, calendar, and alarm capability; integrated real-time clock |
| Reset Inputs | HDRST and PWRDN; cold reset and power initialization reset / thermal reset input |
| Reset Outputs | NRESPWRON and NRESPWRON2; 32-kHz clock and reset for system plus additional reset output |
| Protection Features | Thermal shutdown protection and hot-die detection; device protection functions |
| Watchdog | Integrated watchdog; system supervision function |
| LED/PWM Generators | Two ON/OFF LED pulse generators and one PWM generator; integrated generator functions |
| Comparators | 2 comparators; system control comparators connected to VCCS pin |
| Power Sequencing | Programmable by EEPROM; Embedded Power Controller manages system power sequencing |
| Package Pin Count | 98 pins; device information table |
| Package Pitch | 0.65 mm; BGA package pitch |
| Body Size | 9.00 mm x 6.00 mm; nominal package body size |
| Datasheet Status | request_only |
Product Overview
TPS65911 is a Texas Instruments integrated power management unit for processor and portable system power sequencing. It accepts supported application power sources including one Li-Ion or Li-Ion polymer cell, three-series Ni-MH cells, or a 5-V input. The device combines multiple regulated rails with control, reset, timing, and supervision functions in one Power_Management IC.
The power architecture includes three efficient step-down DC-DC converters: VDD1 and VDD2 for processor cores, and VIO for I/O power. VDD1 and VDD2 support dynamic voltage scaling, with voltage scaling available through a high-speed I2C interface or through alternate EN1 and EN2 pin use. VDDCtrl provides control for external FETs to support a high-current rail.
Integrated regulator resources include eight general-purpose LDOs plus one RTC LDO. Five LDO regulators cover 1.0 V to 3.3 V in 100-mV steps, while LDO1, LDO2, and LDO4 cover 1.0 V to 3.3 V in 50-mV steps. All LDO regulators are fully controllable by I2C.
The device is supplied in a BGA MicroStar Junior package with 98 pins, 0.65-mm pitch, and a 9.00 mm x 6.00 mm nominal body. System functions include programmable EEPROM power sequencing, configurable GPIOs, RTC date and alarm capability, reset inputs and outputs, thermal shutdown protection, hot-die detection, watchdog, comparators, and LED/PWM generation.
Key Features
- Integrated PMIC with multiple processor and system power rails
- Supports Li-Ion, Li-Ion polymer, Ni-MH, or 5-V inputs
- Three step-down DC-DC converters for VDD1, VDD2, and VIO
- Dynamic voltage scaling supported for VDD1 and VDD2 cores
- High-speed I2C interfaces for control and voltage scaling
- Eight general-purpose LDOs plus one RTC LDO resource
- Nine configurable GPIOs with external enable and LED sink functions
- Programmable EEPROM sequencing through embedded power controller
- Integrated RTC with crystal or built-in RC oscillator option
- Thermal shutdown, hot-die detection, and watchdog supervision
Typical Applications
- Processor power sequencing
- Portable system power management
- Li-Ion powered systems
- Ni-MH powered systems
- I/O rail regulation
- Processor core voltage scaling
- External high-current rail control
- RTC-based system timing
- LED drive and PWM generation
Procurement Notes
When requesting a quote for TPS65911, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of device is the TPS65911?
TPS65911 is a Texas Instruments integrated power management unit in the Power_Management category. It integrates multiple power rails for processor and portable system power sequencing, including step-down converters, LDO regulators, GPIO functions, RTC resources, reset functions, protection, and supervision.
Which input power sources does TPS65911 support?
The extracted datasheet facts list support for one Li-Ion or Li-Ion polymer cell, three-series Ni-MH cells, or a 5-V input as supported application power sources for the TPS65911.
How many step-down converters are integrated in TPS65911?
TPS65911 integrates three step-down DC-DC converters. VDD1 and VDD2 are efficient converters for processor cores, while VIO is an efficient converter for I/O power.
What package is used for TPS65911?
TPS65911 uses a BGA MicroStar Junior package with 98 pins, 0.65-mm pitch, and a 9.00 mm x 6.00 mm nominal body size, according to the extracted package facts.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 25, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.