Microchip Technology MIC2810 Digital Power Management ICs
Microchip MIC2810 Digital Power Management ICs feature three output voltages with independent enable control, a 2MHz DC/DC converter, and two 300mA LDOs. The MIC2810 PMICs have a LOWQ mode that reduces the total current draw to less than 30µA. The LOWQ mode supports an output noise of 53µVRMS on the DC/DC converter. This output noise is significantly lower than other converters that use a PFM light load mode. The PFM light load mode can interfere with sensitive RF circuitry.
The DC/DC converter retains high efficiency over a wide load range, using small values of L and C to reduce board space and support load currents up to 600mA. The LDOs reduce required board space and component cost, operating with very small ceramic output capacitors for stability. The MIC2810 PMICs are available in the 16-pin 3mm x 3mm QFN leadless package with various output voltage options.
Features
- 2.7V to 5.5V input voltage range
- 2MHz DC/DC converter and two LDOs
- Integrated Power-on Reset (POR)
- Adjustable POR delay time
- Tiny 16-pPin 3mm x 3mm QFN package
- 30µA total IQ when in LOWQ mode
- DC/DC converter
- Up to 600mA of output current in PWM mode
- LOWQ mode: no ripple light load mode
- 53µVRMS output noise in LOWQ mode
- 2MHz PWM mode operation
- >90% efficiency
- LDO1
- 1.65V to 5.5V input voltage range
- 300mA output current
- Output voltage down to 0.8V
- LDO2
- 2.7V to 5.5V input voltage range
- 300mA output current
- Output voltage down to 0.8V
- Thermal shutdown protection
- Current-limit protection
- Simple, leakage-free interfacing to host MPU in applications with backup power
Applications
- Embedded MPU and MCU power
- Portable and wearable applications
- Low-Power RF systems
- Backup power systems
Typical Application Circuit
Functional Diagram
Publicado: 2019-06-10
| Atualizado: 2023-06-01