| Integrated Circuits (ICs) | 2 | Active | |
L5957Multifunction Voltage Regulator | Special Purpose Regulators | 3 | Active | The L5957 contains a triple voltage regulator and a power switch.
The IC includes a monitoring circuit for detection.
The IC features a very low quiescent current in standby. |
| Integrated Circuits (ICs) | 2 | Active | |
| Integrated Circuits (ICs) | 1 | Obsolete | |
| Voltage Regulators - Special Purpose | 2 | Active | |
L5963L5963 Evaluation board | Evaluation Boards | 7 | Active | EVAL-L5963 is an evaluation board supporting the L5963 in PowerSSO-36 slug down voltage regulator. It offers the flexibility to independently supply the various regulators and to work at a frequency different from the free run (250 kHz). |
L5964Automotive Monolithic dual 3.5A step-down switching regulator with LDO | Voltage Regulators - Linear + Switching | 1 | Obsolete | L5964 is a dual step-down switching regulator with internal power switches and a low drop-out linear/standby regulator. All the regulators have independent supply voltages, enables, power goods and thermal protections.
The switching regulators have selectable voltage supervisors and power goods, and selectable current limits. The LDO has power good and fixed current limitation.
The two DC-DC converters can work in free-run condition, with frequency selectable between two values, 270 kHz or 2.2 MHz, or synchronize themselves to an external clock (SYNCIN pin). They are 180° out of phase, while the synchronization output signal (SYNCOUT pin) is 90° out of phase with the first regulator. The phase shift simplifies the use of two ICs in the same application (4 DC/DCs regulators).
DC-DC1 and DC-DC2 current limits can be independently set through the pins OCPSET1 and OCPSET2 respectively. Two current limits are available, 2 A (1.7 A min) and 3.5 A (3.7 A min). For operation > 2 A, 20 V, with less than 0.5 V forward voltage and 2 A at room temperature, Schottky diodes placed as close to the PHASE1/2 pins as possible, to ground are required.
The high operating frequency allowed by the synchronization input helps to reduce AM and FM interferences and grants the use of small and low cost inductors and capacitors.
The L5964 can manage the microcontroller supply. A configurable reset output and a configurable watchdog input are available.
This IC finds application in the automotive segment, where load dump protection and wide input voltage range are mandatory. L5964 has been qualified for car passenger cars, with a standard 14 V battery. The total quiescent current, when both DC/DCs and LDO are disabled, is less than 10 µA.
The product is available in LQFP64 exposed pad up package. The slug, whenever possible, has to be connected to the ground plane. |
L5965Multiple power management for automotive vision and radar systems | Integrated Circuits (ICs) | 2 | Active | 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 the 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. |
| Voltage Regulators - DC DC Switching Regulators | 2 | Active | |
| Integrated Circuits (ICs) | 2 | Active | |
