LTC3676/LTC3676-1 PMIC Reference Design Based on NXP i.MX 6 Series Processors

LTC3676/LTC3676-1 PMIC Reference Design
Based on NXP i.MX 6 Series Processors
NOVPEK i.MX6x-LT Platform Evaluation Kit
Unleash the Power of the NXP i.MX 6 Series Processor
Includes:
Module Based on
NXP i.MX 6 Series
Base Board
NovTech LTC3676
Power Solution
Boot-Loader
LINUX Porting
QNX Porting
Android Porting
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Linear Technology PMIC Module
This PMIC board provides sufficient power for single through quad core
variants of the NXP i.MX 6 series of processors and the NOVPEK base
board. The PMIC solution supports two modes of power sequencing:
1.LDO1 is always on to support an external µController and allows software
customized start-up sequences
2.Enable pin strapping options support powering the i.MX 6 series domains
directly via hardware control without the need of an external µController
LTC3676 has 4 DC/DC and 4 LDO regulators, providing ~9A total
current output
Input supply voltage range: 2.7V to 5.5V for USB and battery applications
LTC3676-1 provides DDR VREF and VTT switcher
LTC3676 for designs without VTT
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Linux drivers available at: www.linear.com/3676
To purchase these boards, visit:
Novtech
http://novsum.com/images/docs/imx6_linear_pmic_full.pdf
954-471-7281 or 888-701-7466
Arrow
www.arrow.com
800-833-3557 (US) or 303-305-5691 (Outside US)
L, LT, LTC, LTM, Linear Technology and the Linear logo are
registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
New PMIC for Advanced Application Processors
VIN 2.7V TO 5.5V
VIN
LDO1_STDBY
SW3
VCORE
0.75V TO 1.5V
AT 2.5A
1.2V AT
300mA
LDO2
SW2
VSOC
0.75V TO 1.5V
AT 1.5A
1.8V AT
300mA
LDO3
SW4
DDR VDDQ
1.5V
AT 2.5A
3.0V AT
300mA
LDO4
SW1
VTT
1/2 VDDQ
AT 1.5A
VRTC 1.2V
AT 25mA
6mm
7
LTC3676-1
VTTR
ENABLES
PWR_ON
1/2 VDDQ
7m
m
m
7m
WAKE
6mm
ON
PGOOD
I2C
GND
2
TO µPROCESSOR
QFN-40
LQFP-48
4 High Current High Efficiency Bucks + 4 LDOs + DDR Solution with VTTR
+ I2 C Control + Sequencing + Dynamic Voltage Scaling = Complete Power
Management Solution for Advanced Application Processor-Based Systems
The LTC®3676 and LTC3676-1 are complete power management solutions for NXP i.MX 6 series, ARM Cortex and other advanced
portable application processor systems. The LTC3676/LTC3676-1 feature eight independent resistor-programmable voltage rails,
with dynamic voltage scaling and sequencing, in compact QFN and thermally enhanced QFP packages. These rails supply power
to the processor core, SDRAM, I/O, system memory, PC cards, always-on real-time clock (RTC) and a variety of other functions.
Features
LTC3676 Demo Board
Quad I2C Adjustable High Efficiency Step-Down DC/DC
Converters: 2.5A, 2.5A, 1.5A, 1.5A
Triple 300mA LDO Regulators (2 Adjustable)
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DDR Power Solution with VTT and VTTR Reference
(LTC3676-1 Version)
Pushbutton On/Off Control with System Reset
Independent Enable Pin-Strap or I2C Sequencing
Programmable Autonomous Power-Down Control
Power Good and Reset Functions
Dynamic Voltage Scaling
Selectable 2.25MHz or 1.12MHz Switching Frequency
Always Alive 25mA LDO Regulator
12μA Standby Current
40-Pin 6mm × 6mm × 0.75mm QFN Package
48-Pin 7mm × 7mm LQFP Package
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24mm
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Applications
Supports NXP i.MX 6, Altera ARM-Based SoC FPGAs, ARM
Cortex and other Application Processors
Handheld Instruments and Scanners
Portable Industrial and Medical Devices
Automotive Infotainment
High End Consumer Devices
Multirail Systems
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24mm
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www.linear.com/3676 n 1-800-4-LINEAR
0516A