Microchip Technology MIC2800 Digital Power Management ICs
Microchip Technology MIC2800 Digital Power Management ICs are designed to integrate a 2MHz DC/DC converter with an LDO post-regulator to provide two high-efficiency outputs. These ICs feature the LOWQ mode that reduces the total current drawn to 30µA and reduces the output noise of the DC/DC converter to 75µVRMS. The DC/DC converter retains efficiencies of over 90% at load currents of up to 600mA by using small values of L and C.
The MIC2800 ICs reduce required board space, component cost, and increases stability by operating with very small ceramic output capacitors and inductors. These ICs are available in a tiny 16-pin 3mm x 3mm QFN package. Typical applications include low-power RF systems, backup power systems, embedded MPU, and MCU power.
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
- LOWQ mode:
- 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
- 75µVRMS output noise in LOWQ mode
- 2MHz PWM mode operation
- >90% efficiency
- LDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency:
- Ideal for 1.8V to 1.5V conversion
- 300mA output current from 1.8V input
- Output voltage down to 0.8V
- LDO2 - 300mA output current capable
- Thermal shutdown protection
- Current limit protection
- Simple, leakage-free interfacing to host MPU in applications with backup power
- Tiny 16-pin 3mm x 3mm QFN package
Applications
- Embedded MPU and MCU power
- Portable and wearable applications
- Low-power RF systems
- Backup power systems
Block Diagram
Typical Application Circuit
Related Evaluation Board
Microchip Technology MIC2800 Evaluation Board
Designed to demonstrate the capabilities of MIC2800 Power Management IC (PMIC).
Publié le: 2019-01-20
| Mis à jour le: 2023-05-11