AS3722 Datasheet, PDF (1/198 Pages) –

AS3722
Multi-Phase DCDC Controller PMIC
General Description
The AS3722 is a compact System PMU supporting up to 20 high
current rails.
The device offers advanced power management functions. All
necessary ICs and peripherals in a battery powered mobile
device are supplied by the AS3722. It features 4 DCDC buck
converters as well as 11 low noise LDOs. The different regulated
supply voltages are programmable via the serial control
interface. 3-4MHz operation with 0.47uH coils is reducing cost
and PCB space.
AS3722 further features 3 DCDC buck controller which are ideal
to support processor currents ranging from 5A up to 32A
depending on the used power stages. The multi-phase
topology operating on 3MHz ensures fast load transient
responses and reduces the footprint for external components.
The single supply voltage may vary from 2.7V to 5.5V.
Ordering Information and Content Guide appear at end of
datasheet.
Figure 1:
Added Value of Using AS3722
Key Benefits & Features
The benefits and features of AS3722, Multi-Phase DCDC
Controller PMIC are listed below:
Benefits
• Compact design due to small coils for IO and
memory voltage generation
• High current generation with external power
stages to minimize PMIC power dissipation
• Multiple independent voltage rails for general
purpose IO supplies
• Ultra low-power oscillator and no external caps
needed
Features
• 4 DCDC step down regulators (3-4MHz)
• Output (0.6V-3.35V; 1x5A, 1x2A, 2x1.5A)
• 3 DCDC step down controller
• DVM (0.6V-1.5V; 1x6A, 1x12A, 1x24A)
• 11 universal LDOs
• 9x universal IO range(0.8-3.3V; 0.3A)
• 1x low output range (0.6-1.5V; 0.3A)
• 1x extended input range (0.8-1.2V; 0.3A)
• RTC
• 1μA total power consumption
• Programmable alarm
• Auto wake-up, repeating alarms
• 32kHz output to peripherals
ams Datasheet
[v1-01] 2015-Sep-07
Page 1
Document Feedback