5.5A Distributed Power Unit

(DPU)

Advanced Datasheet

IDTP9167

January 28, 2014

1

Features



Dual supply input:

PVIN = 5.6V to 12.6V (main power supply)

VSYS = 5V (10mA system supply)



Output voltage compliance:

0.75V to 1.55V

0.75V to 3.6V (for PVIN = 12V only)



Peak output current up to 5.5A



Switching frequency: 2MHz



Support for up to 4 DPUs supplying the same rail



Multiphase output: up to 5 phases configured

automatically depending on number of devices



2-wire digital bus interface for device configuration,

control and status exchange with host PMIC



-40°C to +85°C operating temperature range



12-ld 4mm x 3mm x 0.85mm DFN package

Applications



Tablet PCs, Notebooks, Embedded systems

Description

IDTP9167 is a power management device used in conjunction

with the IDTP9165 PMIC to either increase the output current

capability of existing Buck regulator rails, or implement extra

output rails when connected to the PMIC’s controller interface.

The device works as a controlled current source that supplies

current to the load above what the host PMIC can deliver on its

own. Up to four IDTP9167s may be used in parallel to provide an

additional 22A of peak load current capability.

A high-speed 2-wire digital bus connects the IDTP9165 to the

IDTP9167 DPUs to provide control and exchange status

information. The device seamlessly integrates into the PMIC eco-

system and is transparent from a user point of view.

The IDTP9167 comes in a 4mm x 3mm, 12-ld DFN package. It is

guaranteed to operate over the industrial temperature range of

-40°C to +85°C.

0.47µH

VCC

DCD1

VDDQ

V1.0A

VSYS_5V

IDTP9165

DCD0_LX

DCD0_FB

DCD1_LX

DCD1_FB

DCD0_VIN

DCD1_VIN

DCD2_LX

DCD2_FB

DCD3_LX

DCD3_FB

DCD2_VIN

DCD3_VIN

DCD0_GSEN

DCD1_GSEN

0.47µH

10µF

2x10µF

PVIN_12V

1µF

IDTP9167

LX

PGND

PVIN

VSYS

RSET

VPG

DIO

DIF

60.4kΩ

DCD1_DIO

DCD1_DIF

IDTP9167

LX

PGND

PVIN

VSYS

RSET

VPG

DIO

DIF

SoC

1µF

0.47µH

10µF

10µF*

4.7µF

4.7µF

53.6kΩ

2x10µF

6 x 47µF

PGND

Optional

*

*

*

Figure 1 – Typical application circuit including connection to IDTP9165 host PMIC