Document
Product Folder
Order Now
Technical Documents
Tools & Software
Support & Community
TPS659121, TPS659122
SWCS071C – AUGUST 2012 – REVISED AUGUST 2017
TPS65912x PMU for Processor Power
1 Device Overview
1.1 Features
1
• Four Step-Down Converters: – VIN 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 – VIN 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 DSBGA 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 DSBGA package (3.6 mm × 3.6 mm) with a 0.4-mm pitch.
1
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.
TPS659121, TPS659122
SWCS071C – AUGUST 2012 – REVISED AUGUST 2017
www.ti.com
PART NUMBER
Device Information(1)
PACKAGE
BODY SIZE
TPS65912x
DSBGA (81)
3.6 mm × 3.6 mm
(1) For more information, see the Mechanical, Packaging, and Orderable Information section.
1.4
Functional Block Diagram Figure 1-1 shows the functional block diagram of the TPS65912x device.
VCC
CVCC DEF_SPI_I2C-GPIO
SCL_CLK SDA_MOSI GPIO1_MISO GPIO2_CE SCL_AVS (CLK_REQ1) SDA_AVS (CLK_REQ2) EN1 (DCDC1_SEL) EN2 (DCDC2_SEL) EN3 (DCDC3_SEL) EN4 (DCDC4_SEL) nRESPWRON
INT1 SLEEP (PWR_REQ)
PWRHOLD
OMAP_WDI (32k_OUT)
CPCAP_WDI
VCON_PWM
VCON_CLK
EN_LS0
EN_LS1
nPWRON (nRESIN)
VDDIO DGND
LEDA/GPIO3 LEDB/GPIO4 LEDC/GPIO5
AGND
100 nF
VREF1V25 AGND
VIN_DCDC_ANA
CVIN_DCDC_ANA
VCCS_VIN_MON
LDOAO
tie to GND or LDOAO
CONFIG1 CONFIG2
I2C/SPI
TPS65912x
Power Control
DCDC4 2.5 A
DCDC1 2.5 A
DCDC3 1.6 A
RGB LED
BIAS
32 kHz RC
OSC
+
Vth
ON/OFF
Thermal warning and
shutdown
Internal LDO
DCDC2 0.75 A
Load Switch
LDO3 (0.8-3.3 V, 50 mV step
@100 mA)
LDO1 (0.8-3.3 V, 50 mV step
@100 mA)
LDO2 (0.8-3.3 V, 50 mV step
@100 mA)
LDO4 (1.6-3.3 V, 50 mV step
@250 mA) Low noise
LDO5 (1.6-3.3 V, 50 mV step @250 mA)
Low noise
LDO6 (0.8-3.3 V, 50 mV step
@100 mA)
LDO7 (0.8-3.3 V, 50 mV step
@200 mA)
LDO8 (0.8-3.3 V, 50 mV step
@100 mA)
LDO9 (0.8-3.3 V, 50 mV step
@300 mA)
VINLDO
LDO10
1210
(0.8-3.3 V, 50 mV step @300 mA)
VINDCDC4
10 µF CIN4 VBat
L4 1 µH SW4
VDCDC4 VDCDC4_GND PGND4
CoutDCDC4
VINDCDC1
10 µF CIN1 VBat
SW1
L1 1 µH
VDCDC1 VDCDC1_GND PGND1
VINDCDC3
CoutDCDC1
10 µF CIN3 VBat
SW3
L3 1 µH
VDCDC3 PGND3
CoutDCDC3
VINDCDC2
10 µF CIN2
VBat
SW2
L2 1 µH
VDCDC2 PGND2 LSI
CoutDCDC3
LSO
VINLDO3 LDO3
CinLDO3
VINLDO1210 CoutLDO3
LDO1
CinLDO1210
LDO2
CoutLDO2
VINLDO4 LDO4
CoutLDO1 CinLDO4
VINLDO5 LDO5
Cou.