Power management for automotive vision and radar systems
VFQFPN-48 (7x7 mm)
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Pre SMPS BUCK1 regulator controller, adjustable via OTP to 0.8 V, 1.0 V, 1.1 V,
1.2 V, 1.8 V, 3.3 V, 3.8 V, 5.0 V @ 0.4 MHz
Pre SMPS BUCK2 regulator, adjustable via OTP to 1.0 V, 1.1 V, 1.2 V, 1.35 V,
1.5 V, 3.3 V, 3.6 V, 5.0 V @ 1.35/2.6 A min peak current limit, 0.4/2.4 MHz
Post SMPS BUCK3 regulator, adjustable via OTP to 1.0 V, 1.2 V, 1.35 V, 1.8 V,
2.0 V, 2.3 V, 2.5 V, 3.3 V @ 1.4 A min peak current limit, 2.4 MHz
Post SMPS BUCK4 regulator, adjustable via OTP to 1.1 V, 1.12 V, 1.2 V, 1.25 V,
1.3 V, 1.35 V, 1.8 V, 3.3 V @ 1 A min peak current limit, 2.4 MHz
Post SMPS BOOST regulator, adjustable via OTP to 5.0 V @ 0.3 A max load
current, 7.0 V @ 0.2 A max load current, 2.4 MHz
Post Linear regulator LDO, adjustable via OTP to 1.2 V, 1.25 V, 1.3 V, 1.8 V,
2.5 V, 2.8 V, 3.3 V, 5.0 V @ 300/600 mA max load current
Precise Voltage reference, adjustable via OTP to 1.8 V, 2.5 V, 3.3 V,
4.1 V @ 20 mA max load current
SPI interface with CRC
Programmable slew rate/soft start
Spread frequency spectrum
Reset and reset activation list
Adjustable window watchdog supervisors
Power up phase programmable via OTP
Short circuit protected outputs and Fault detection pin to Microcontroller
Low external components number
Thermal shutdown junction temperature 175 °C
Order code Package Packing
L5965 is a multiple voltage regulator composed by two battery compatible BUCK pre-
regulators (one of which is a controller), two BUCK post regulators with internal
compensation, one BOOST, one LDO and a precise voltage reference regulator. All
the regulators, except the BUCK1 pre-regulator, have internal power switches.
OTP (One Time Programmable) cells are used for the main device parameters
programming (output voltages and currents, switching frequencies) and to configure
power up sequence.
An SPI interface can be used to enable or disable the single voltage regulators, for
diagnostic information and to program internal blocks parameters (monitor and
Power Good thresholds, slew rate, etc.).
The device offers a set of features to support applications that need to fulfill functional
safety requirements as defined by Automotive Safety Integrity Level (ASIL) A-B-C-D.
DS12567 - Rev 2 - May 2019
For further information contact your local STMicroelectronics sales office.