AS3722 Power Management Unit
4 buck DC-DC, 24A DC-DC controller, 12 LDOs, general purpose ADC
Features
- 4 DC-DC step-down regulators (3-4MHz)
- 3 DC-DC step-down controller with automatic phase shedding
- 11 universal LDOs (one with DC-DC tracking feature)
- Low power real time clock (<1uA)
- Programmable stand-by sequence
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
Product parameters
DC-DC Step Up Converters | |
---|---|
DC-DC Step Down Converters | 8-phase + 2-phase + 2-phase + 4A +2A + 2x1.5A |
Special LDOs [mA] | |
Universal LDOs [mA] | 12x300 |
Current Sinks [mA] | |
Charge Pump [V/mA] | |
Audio DAC [dB SNR] | |
Audio ADC [dB SNR] | |
Audio Features | |
General Purpose ADC [bit] | 10, 12-channel |
Charger | |
Customizable Startup Sequences | Programmable |
Package | BGA-124 (8x8mm) |

General description
The programmable power management unit AS3722 features 4x DC-DC buck converters, 3x buck converter (6A to 24A) and 11 low noise LDOs. The high level of integration and the 4MHz switching frequencies ensure small system footprint.

This product suits for the following applications:
- Tablet PCs
- Netbooks
- Portable media players
- Solid state disk drives
- Embedded systems

Tools
Title | Category | Headline | Buy |
---|---|---|---|
AS3722/28EvalKit | Application Board | Evaluation Kit for AS3722/28 |
Technical documents
Type | Description | Language | ||
---|---|---|---|---|
Datasheet | Document version 1-01 | English | ||
Other Product Document | OTP specification -08 | English | ||
Other Product Document | OTP specification -09 | English | ||
Other Product Document | OTP specification -10 | English | ||
Other Product Document | OTP specification -11 | English | ||
Other Product Document | OTP specification -13 | English |
Environmental documents
Type | Description | Language | ||
---|---|---|---|---|
Material Declaration Form | MDF_193600023_AS3722-BCTT-13 | English | ||
Material Declaration Form | MDF_193600019_AS3722-BCTT-11 | English | ||
Material Declaration Form | MDF_193600013_AS3722-BCTT-10 | English | ||
Material Declaration Form | MDF_193600009_AS3722-BCTT-00 | English | ||
Material Declaration Form | MDF_193600006_AS3722-BCTT-09 | English | ||
Material Declaration Form | MDF_193600003_AS3722-BCTT-08 | English | ||
RoHS Certificate | RoHS Certificate_AS3722 | English |
Notifications
Type | Description | Language | ||
---|---|---|---|---|
EoL Notification | AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec) | English | ||
EoL Notification | AS3701, AS3722, AS3728 EoL Notification (issued Nov-25-2021) | English |
Other information
Type | Description | Language | ||
---|---|---|---|---|
Block Diagram | AS3722 Block Diagram | English |