Microchip | MIC2826-D9YMT-TR

The MIC2826-D9YMT TR is a Quad Output PMIC with HLL™ DC/DC, 3 LDOs and I²C control. It has a default start up voltages of 1.8V SW, 2.5V LDO1, 1.2V LDO2, 1.2V LDO3. The default start up sequence is 1SW. off LDO1, off LDO2, off LDO3 and comes in a 14-Pin 2.5mm x 2.5mm Thin MLF^® package.

The Micrel MIC2826 is a four output, programmable Power Management IC, optimized for high efficiency power support in Mobile Application Processors, Co-Processors, DSPs, GPS and Media Player chipsets. The device integrates a single 500mA PWM/PFM synchronous buck (step-down) regulator with three Low Dropout Regulators and a 400kHz I²C interface that provides programmable Dynamic Voltage Scaling (DVS), Power Sequencing, and individual output Enable/Disable controls allowing the user to optimally control all four outputs. 

The 4MHz synchronous buck regulator features a patented HyperLight Load™ (HLL) architecture which minimizes switching losses and provides low quiescent current operation for high efficiency at light loads. Additional benefits of this proprietary architecture are low output ripple voltage and fast transient response throughout the entire load range with the use of small output capacitors, reducing the overall system size.

Features :

• Fast-mode I2C control interface
• Tiny 14-pin 2.5mm x 2.5mm MLF^® package
• Default start-up voltage states and sequencing
• Fault indication processor flag - IRQb
• -40°C to 125°C junction temperature range
• Thermal shutdown and current-limit protection
• Power On After Fault (POAF) function

DC-DC Synchronous Buck :

• 2.7V to 5.5V input voltage range
• 500mA continuous output current
• HyperLight Load™ mode
• – 25µA quiescent current
• 90% peak efficiency; 85% at 1mA
• Ultra-fast transient response
• Dynamic Voltage Scaling (DVS) range: 0.8V to 1.8V
• – 0.8V to 1.2V in 25mV steps
• – 1.2V to 1.8V in 50mV steps
• ±2% initial accuracy
• Low output voltage ripple: 20mVpp in HyperLight Load™ mode, 3mV in full PWM mode 

LDOs :

• 1.8V to VDVIN input voltage range
• 150mA output current (each LDO)
• Dynamic Voltage Scaling (each LDO)
• – DVS range: 0.8V to 3.3V in 50mV steps
• ±2% initial accuracy
• Low quiescent current – 50µA (each LDO)
• Low dropout voltage – 50mV @ 50mA
• Low output noise - 45µVRMS
• Stable with ceramic output capacitors
• 65dB PSRR at 1kHz