Features
 Operates from a 2.7V to 5.25V supply
 Five programmable, current-mode, step-down
converters
- Dynamic voltage scaling (12.5mV steps)
- Automatic PWM/PFM transition at light load
- 0.75V to 3.3V software programmable output
voltage range
- Two converters with 1.5A output current
- One converter with 5A output current
- One 10A or two 5A output current converters
- Remote voltage sensing
- Support for external power modules to increase
DCD1 rail output current up to 20A
 11 programmable general purpose LDOs
- Eight 200mA, and three 160mA capable LDOs
- DCD0 or DCD1 Tracking LDO
- 1.0V to 5.25V input voltage range
- 0.75V to 3.3V software programmable output
voltage range
- Always-on LDO for RTC with coin cell/SuperCap
charging capability
 Low power RTC module
- Counts seconds, minutes, hours, day, date, month
and year
 10-bit ADC
 Host interface and system management
- Interrupt controller with mask-able interrupts,
- Reset function
- Power good monitoring
- Programmable sequencing of output rails
 High speed I2C interface, 3.4Mbit/s
 Eight programmable GPIOs
 84-lead 7mm x 7mm x 0.8mm dual-row QFN package

Description
IDTP9165 is a programmable, multiple channel power management IC
(PMIC). It includes 5 integrated, synchronous, step-down DC/DC
regulators (DCD0a, DCD0b, DCD1 through DCD3), 11 LDOs (LDO0
through LDO9, and LDOTR), a Real Time Clock (RTC), a 10-bit ADC,,
eight GPIOs (GPIO0 through GPIO7), and a high speed I2C interface (I2C
bus address: 0x4F). The product is ideal for Tablet PCs and other multi
rail applications and is specifically designed to support the power
management requirements of quad-core processor platforms.
The PMIC DC/DC regulators can support the output current requirements
for the CPU (DCD0) and SOC (DCD1) of the application processor with
up to 10A and 5A, respectively. The output voltages are programmable
from 0.7V to 1.5V.
DCD0 can be configured as a dual-phase, step-down regulator or as two
single-phase regulators (DCD0a and DCD0b). Both DCD0 and DCD1
offer remote sensing of the rail voltage and dynamic voltage scaling (DVS)
in 12.5mV steps. The DVS set output voltage slew rate is software
adjustable. Furthermore, DCD1 supports the addition of external power
modules (IDTP9167) to increase the output current to over 20A.
There are two step-down regulators (DCD2, DCD3) with output currents
of up to 1.5A. Those regulators are output voltage software adjustable in
12.5mV steps. All step down switching regulators are current-mode
controlled with a switching frequency of 2.1MHz.
Also integrated in the IDTP9165 are 11 software programmable LDOs
with a wide output voltage range and with output currents capabilities up
to 280mA. All LDOs are low noise, high PSRR, and low dropout
regulators.
The output voltages of all regulators as well as device sequencing can be
software programmable by writing to volatile registers through the I2C
interface (Default address: 0x4F) or permanently programmed by OTP
(One Time Programmable fuse cells). The PMIC operates from a single
2.7V to 5.25V supply. Additionally, the device has an internal high voltage
regulator to supply the ONKEY button and RTC circuitry. This feature
allows the complete shutdown of the pre-regulator in a dual-cell or triplecell battery system, thus increasing the battery life of the tablet.
IDTP9165 also provides a dedicated pin to sequence the DDR memory
power supply.
The package for the IDTP9165 is a 7mm x 7mm, 84 lead, dual row QFN
package. Operation through the commercial temperature range -40°C to
+85°C is guaranteed.