TPS659121_16 Datasheet, PDF (1/145 Pages) Texas Instruments – PMU for Processor Power

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TPS659121, TPS659122
SWCS071B – AUGUST 2012 – REVISED APRIL 2015
TPS65912x PMU for Processor Power
1 Device Information
1.1 Features
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• Four Step-Down Converters:
– V_IN Range From 2.7 V to 5.5 V
– Power Save Mode at Light Load Current
– Output Voltage Accuracy in PWM Mode ±2%
– Typical 26-μA Quiescent Current per Converter
– Dynamic Voltage Scaling
– 100% Duty Cycle for Lowest Dropout
• Ten LDOs:
– 8 General-Purpose LDOs
– Output Voltage Range From 0.8 V to 3.3 V
– 2 Low-Noise RF-LDOs
– Output Voltage Range From 1.6 V to 3.3 V
– 32-μA Quiescent Current
– Preregulation Support by Separate Power
Inputs
– ECO Mode
– V_IN Range of LDOs Respective to the Following
Voltage Ranges:
• 1.8 V to 3.6 V
• 3.0 V to 5.5 V
• Three LED Outputs:
– Internal Dimming Using I²C
– Multiplexed With GPIOs
– Up to 20 mA per Current Sink
• Thermal Monitoring
– High Temperature Warning
– Thermal Shutdown
• Bypass Switch
– Used With DCDC4 in Applications Powering an
RF-PA
– For Example, as Supply Switch for SD Cards
• Interface
– I²C Interface
– Power I²C Interface for Dynamic Voltage
Scaling
– SPI
• 32-kHz RC Oscillator
• Undervoltage Lockout and Battery Fault
Comparator
• Long Button-Press Detection
• Flexible Power-Up and Power-Down Sequencing
• 3.6-mm × 3.6-mm WCSP Package With 0.4-mm
Pitch
1.2 Applications
• Data Cards
• Smart Phones
• Wireless Routers and Switches
• Tablets
• Industrial Applications
• LTE Modem
• GPS
1.3 Description
The TPS65912x device provides four configurable step-down converters with up to 2.5-A output current
for memory, processor core, I/O, or preregulation of LDOs. The device also contains ten LDO regulators
for external use. These LDOs can be supplied from either a battery or a preregulated supply. Power-up or
power-down controller is configurable and can support any power-up or power-down sequences
(OTP-based). The TPS65912x device integrates a 32-kHz RC oscillator to sequence all resources during
power up or power down. All LDOs and DC-DC converters can be controlled by I²C-SPI interface or basic
ENABLE balls. In addition, an independent automatic voltage-scaling interface allows for transitioning
DC-DC to a different voltage by I²C or basic Roof/Floor Control. Three RGB LEDs with an advanced
dimming feature are integrated inside the device. GPIO functionality is multiplexed with LED/ENABLE/SPI
when not used. Each GPIO can be configured as part of the power-up sequence to control external
resources. One SLEEP pin enables power mode control between active mode and preprogrammed sleep
mode for power optimization. For system control, the TPS65912x device has one comparator for system
state management. The TPS65912x device comes in a 9-pin × 9-pin WCSP package (3.6 mm × 3.6 mm)
with a 0.4-mm pitch.
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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.