SWCS049B datasheet(43/119 Pages) TI1

43 / 119 page

TPS659110, TPS659112, TPS659113

TPS659114, TPS659118, TPS6591133

www.ti.com

SWCS049Q – JUNE 2010 – REVISED MARCH 2016

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Product Folder Links: TPS659110 TPS659112 TPS659113 TPS659114 TPS659118 TPS6591133

Detailed Description

6.1

Power Reference

The band-gap voltage reference is filtered by using an external capacitor connected across the VREF

output and the analog ground REFGND (see Section 5.3, Recommended Operating Conditions). The

VREF voltage is distributed and buffered inside the device.

6.2

Power Resources

The power resources provided by the TPS65911x device include inductor based switched mode power

supplies (SMPSs) and linear low-dropout voltage regulators (LDOs). These supply resources provide the

required power to the external processor cores and external components, and to modules embedded in

the TPS65911x device.

Two of the integrated SMPSs and the external FET SMPS have voltage scaling capability. These SMPSs

provide independent core voltage domains to the host processor. When changing the output voltage,

VDD1 and VDD2 reach the new value through successive steps of 2.5 to 12.5 mV. The size of the voltage

step is selected by the TSTEP bit. VDDCtrl has a target slew rate of 100 mV/20 µs. New output values are

reached in successive smaller steps of N × LSB, LSB = 12.5 mV, N = 1 to 4. A suitable combination of

steps is calculated internally based on current and new target value for output voltage.

The VIO SMPS provides supply voltage for the host processor I/Os.

Table 6-1 lists the power sources provided by the TPS65911x device.

Table 6-1. Power Sources

RESOURCE

TYPE

VOLTAGES

POWER

VIO

SMPS

1.5 V

1300 mA

1.8 V

1200 mA

2.2 or 3.3 V

1100 mA

VDD1

SMPS

0.6 to 2.2 V

1500 mA

3.2 V

1200 mA

1.2 or 1.35 or 1.5 V (VINmin = 3 V)

2000 mA

0.6 ... 1.5 V in 12.5-mV steps

Programmable multiplication factor: ×2, ×3. Maximum output 3.3 V

VDD2

SMPS

0.6 to 1.5 V

1500 mA

2.2 / 3.2 V

1200 mA

0.6 ... 1.5 V in 12.5-mV steps

Programmable multiplication factor: ×2, ×3. Maximum output 3.3 V

VDDCtrl

SMPS

0.6 … 1.4 V in 12.5-mV steps

External component

dependent

LDO1

LDO

1.0–3.3 V, 0.05-V step

320 mA

LDO2

LDO

1.0–3.3 V, 0.05-V step

320 mA

LDO3

LDO

1.0–3.3 V, 0.1-V step

200 mA

LDO4

LDO

1.0–3.3 V, 0.05-V step

50 mA

LDO5

LDO

1.0–3.3 V, 0.1-V step

300 mA

LDO6

LDO

1.0–3.3 V, 0.1-V step

300 mA

LDO7

LDO

1.0–3.3 V, 0.1-V step

300 mA

LDO8

LDO

1.0–3.3 V, 0.1-V step

300 mA

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