ZHCSIK3 July 2018 TPS650861
PRODUCTION DATA.
The TPS650861 power-management integrated circuit (PMIC) provides a highly flexible, programmable, and configurable power solution that can power a wide array of processors along with DDR3/DDR4 memory and other peripherals. Integrated in the PMIC are three step-down controllers (BUCK1, BUCK2, and BUCK6), three step-down converters (BUCK3, BUCK4, and BUCK5), a sink or source LDO (VTT LDO), three low-voltage VIN LDOs (LDOA1–LDOA3), and three load switches (SWA1, SWB1, and SWB2). With on-chip one-time programmable (OTP) memory, configuration of each rail for default output value, power-up sequence, fault handling, and Power Good mapping into a GPO pin are all conveniently flexible. The TPS650861 has two OTP memory banks which are designed to be programmed to fit different designs. (See Section 5.7) All VRs have a built-in discharge resistor, and the value can be changed using the DISCHCNT1–DISCHCNT3 and LDOA1_SWB2_CTRL registers. When enabling a VR, the PMIC automatically disconnects the discharge resistor for that rail without any I2C command. lists the key characteristics of the voltage rails.
RAIL | TYPE | INPUT VOLTAGE (V) | OUTPUT VOLTAGE RANGE (V) | CURRENT (mA) | |||
---|---|---|---|---|---|---|---|
MIN | MAX | MIN | TYP | MAX | |||
BUCK1 | Step-down controller | 4.5 | 21 | 0.41 | OTP-programmable | 3.575 | scalable |
BUCK2 | Step-down controller | 4.5 | 21 | 0.41 | OTP-programmable | 3.575 | scalable |
BUCK3 | Step-down converter | 3 | 5.5 | 0.41 | OTP-programmable | 3.575 | 3000 |
BUCK4 | Step-down Converter | 3 | 5.5 | 0.41 | OTP-programmable | 3.575 | 3000 |
BUCK5 | Step-down converter | 3 | 5.5 | 0.41 | OTP-programmable | 3.575 | 3000 |
BUCK6 | Step-down controller | 4.5 | 21 | 0.41 | OTP-programmable | 3.575 | scalable |
LDOA1 | LDO | 4.5 | 5.5 | 1.35 | OTP-programmable | 3.3 | 200(1) |
LDOA2 | LDO | 1.62 | 1.98 | 0.7 | OTP-programmable | 1.5 | 600 |
LDOA3 | LDO | 1.62 | 1.98 | 0.7 | OTP-programmable | 1.5 | 600 |
SWA1 | Load switch | 0.5 | 3.3 | 300 | |||
SWB1/SWB2 | Load switch | 0.5 | 3.3 | 400 | |||
VTT | Sink and source LDO | 1.1 | 1.8 | FBVOUT6 / 2 | OTP-programmable |