AS3721 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
- 11 universal LDOs
- 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 AS3721 features 4x DC-DC buck converters, 3x buck converter (6A to 24A) and 12 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 |
---|---|---|---|
AS3721/29EvalKit | Application Board | Evaluation Kit for AS3721/29 |
Environmental documents
Type | Description | Language | ||
---|---|---|---|---|
Material Declaration Form | MDF_190120013_AS3721-BCTT-00 | English | ||
Material Declaration Form | MDF_190120013_AS3721-BCTT-00 | English |
Other information
Type | Description | Language | ||
---|---|---|---|---|
Block Diagram | AS3721 Block Diagram | English |