SLVUCF6 july 2023
The TPS65219 PMIC has multiple analog and digital resources that can be configured to power different processors, FPGAs and SoCs. Table 3-1 and Table 3-2 summarize some of the key electrical spec specification for the analog rails, the possible supply configurations and programmable features for each regulator.
Buck1 | Buck2/3 | LDO1/2 | LDO3/4 | |
---|---|---|---|---|
Input Voltage Range | 2.5V to 5.5V | 2.5V to 5.5V | 1.5V to 5.5V | 2.5V to 5.5V |
Output Voltage Range | 0.6V to 3.4V | 0.6V to 3.4V | 0.6V to 3.4V | 1.2V to 3.3V |
Operating Current | Maximum of 3.5A | Maximum of 2A | 400mA | 300mA |
Current Limiting | 5.7A to 6.9A | 3.9A to 4.7A | 600A to 900mA | 400A to 900mA |
Status Monitoring | UV, NEG_OC, OC, SCG, RV | UV, NEG_OC, OC, SCG, RV | UV, OC, SCG, RV | UV, OC, SCG, RV |
Rail Configuration | Buck Converter | Buck Converter | LDO; load switch; bypass-mode | LDO; load switch |
Short-Circuit Threshold (SCG) | 220mV to 300mV | 220mV to 300mV | 220mV to 300mV | 220mV to 300mV |
TPS65219 has three multi-function-pins that can be configured depending on functional use. Table 3-2 shows the functions available for each of these pins as well as how these functions are configured and operated.
Note: Only one of the following pins, MODE/RESET or MODE/STBY, may be configured as MODE. If both are configured as MODE, MODE/RESET takes priority and MODE/STBY is be ignored.
Pin Name | Pin Configuration | Operation |
---|---|---|
VSEL_SD/VSEL_DDR |
VSEL_SD SD-card-IO-voltage selection |
Trigger voltage change between 1.8V and register-based VLDO1 or VLDO2. Polarity is configurable. |
VSEL_DDR
DDR-voltage selection |
Hard-wired pull-up, pull-down, or floating. Sets VBUCK3 to 1.35V, 1.2V or register-based VBUCK3. Level-sensitive. | |
MODE/RESET | MODE Forces Buck converters into PWM or auto-entry in PFM-mode |
Connected to SoC or hard-wired pull-up/down. Level-sensitive. |
RESET Forces a WARM or COLD reset. |
Connected to SoC. WARM reset: reset output voltages to default COLD reset: sequence down all enabled rails and power up again Edge-sensitive. |
|
MODE/STBY | MODE Forces Buck converters into PWM or auto-entry in PFM-mode |
Pin-status determines the switching mode of the buck converters. Assert pin low for longer than tDEGLITCH_MFP to force buck regulators into PWM-mode. I2C selection also available by writing to MODE_I2C_CTRL in MFP_1_CONFIG register. |
STBY Low power mode |
Disables selected rails. Assert pin low for longer than Both MODE and STBY can be combined. Level sensitive. |