TPS659121 Datasheet, PDF (1/8 Pages) Texas Instruments – PMU FOR PROCESSOR POWER

TPS659121
www.ti.com
PMU FOR PROCESSOR POWER
Check for Samples: TPS659121
SWCS078 – JUNE 2012
1 INTRODUCTION
1.1 Features
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• 4 Step-Down Converters:
– V_IN Range From 2.7V to 5.5V
– 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
• 10 LDOs:
– 8 General Purpose LDOs
– Output Voltage Range 0.8V to 3.3V
– 2 Low Noise RF-LDOs
– Output Voltage Range 1.6V to 3.3V
– 32 μA Quiescent Current
– Pre-Regulation Support by Separate Power
Inputs
– ECO mode
– V_IN Range of LDOs:
• 1.8V to 3.6V or
• 3.0V to 5.5V, respectively
• 3 LED Outputs:
– Internal Dimming Using I2C
– Multiplexed with GPIOs
– Up to 20mA per Current Sink
• Thermal Monitoring
– High Temperature Warning
– Thermal Shutdown
• Bypass Switch
– Used with DCDC4 in Applications Powering
an RF-PA
– As Supply Switch for e.g. SD cards
• Interface
– I²C Interface
– Power I²C Interface for Dynamic Voltage
Scaling
– SPI
• 32kHz RC Oscillator
• Undervoltage Lockout and Battery Fault
Comparator
• Long Button-Press Detection
• Flexible Power-Up and Power-Down
Sequencing
• 3.6mm x 3.6mm WCSP Package with 0.4mm
pitch
1.2 Applications
• Data cards
• Smartphones
1.3 Description
The TPS659121 device provides four configurable step-down converters with up to 2.5A output current for
memory, processor core, I/O, or pre-regulation of LDOs. It also contains 10 LDO regulators for external
usage which can be supplied from either a battery or a pre-regulated supply. Power-up/power-down
controller is configurable and can support any power-up/power-down sequences (OTP based). The
TPS659121 integrates a 32 kHz RC Oscillator to sequence all resources during Power up / down. All
LDOs and DCDC converters can be controlled by I2C/SPI interface or Basic ENABLE Balls. In addition,
an Independent automatic Voltage Scaling interface allows transitioning DCDC to different voltage by I2C
or basic Roof/Floor Control. 3 RGB LED with advanced dimming feature are integrated inside the device.
GPIO functionality is multiplexed with LED/ENBLE/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 and pre-programmed SLEEP mode for power optimization. For system control, the
TPS659121 has 1 comparator for system state management. The TPS659121 comes in a 9 ball x 9 ball
WCSP package (3.6mm x 3.6mm) with a 0.4mm pitch. To request a full data sheet, please send an email
to: [e-mail].
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCT PREVIEW information concerns products in the formative or design phase of
development. Characteristic data and other specifications are design goals. Texas
Instruments reserves the right to change or discontinue these products without notice.
Copyright © 2012, Texas Instruments Incorporated