
Maxim Integrated
General Description
The MAX16922 power-management integrated circuit (PMIC) is designed for medium power-level automotive applications and integrates multiple supplies in a small footprint. The device includes one high-voltage stepdown converter (OUT1) and three low-voltage cascaded DC-DC converters (OUT2, OUT3, OUT4). OUT1 and OUT2 are step-down DC-DC converters, and OUT3/OUT4 are linear regulators. The device also includes a reset output (RESET) and a high-voltage-compatible enable input (EN).
FEATUREs
♦ 1.2A High-Efficiency 2.2MHz DC-DC Converter
3.7V to 28V Operating Supply Voltage
45V Load-Dump Protection
Output Voltage: 3.0V to 5.5V
♦ 600mA High-Efficiency 2.2MHz DC-DC Converter
2.7V to 5.5V Supply Voltage
Output Voltage: 1.0V to 3.9V
180° Out-of-Phase Operation
Forced-PWM and Auto-PWM Modes
♦ LDO Linear Regulators
OUT3: 1.0V to 4.15V at 300mA
OUT4: 1.0V to 4.15V at 300mA
Separate Inputs for Increased Efficiency
♦ Enable Input
♦ RESET Output Monitoring on OUT1 and OUT2
♦ Overtemperature and Short-Circuit Protection
♦ Available in
5mm x 5mm x 0.8mm, 20-Pin TQFN-EP
4.5mm x 6.5mm, 20-Pin TSSOP-EP