Integrated power controller TPS43330-Q1 series for automotive applications (with data sheet, user guide)

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Summary:

The TPS43330-Q1/TPS43332-Q1 contains two current mode synchronous buck controllers and one voltage mode boost controller. This component is ideally suited as a pre-regulator stage that requires less Iq and does not require damage to the system in the event of a power outage caused by an unexpected event. An integrated boost controller allows the device to operate with input voltages as low as 2V without causing a voltage drop during the buck regulator output stage. At light loads, the buck controller automatically runs in low-power mode, consuming only 30μA of quiescent current.

The buck controller has an independent soft start function and a power good indicator. The current foldback in the buck controller and the cycle-by-cycle current limit in the boost controller provide protection for the external MOSFET. The switching frequency can be set between 150kHz and 600kHz or synchronized to an external clock in the same range. In addition, the TPS43332-Q provides frequency hopping spread spectrum operation.

Device Use Vehicle Start Stop, Infotainment, Navigation Tools Cluster System Industrial/Automotive Multi-Track DC Distribution System and Electronic Control Unit

Features Two synchronous buck controllers A pre-boost controller with an input range of up to 40V (instantaneously up to 60V), when boost is turned on, operation drops to 2V
Low power mode IQ: 30μA (one buck on), 35μA (two buck on)
Low shutdown current Ish < 4 μA
Buck output range from 0.9V to 11V
Optional boost output: 7V/10V/11V
Programmable frequency and external synchronization range from 150kHz to 600kHz
Separate start input (ENA, ENB)
Frequency Spread Spectrum (TPS43332)
Optional forced continuous mode at light load or automatic low power mode sense resistor or inductor DCR inductive buck channel for off-phase switch peak gate drive current 1.5 A
Thermally Enhanced – 38-Pin HTSSOP (DAP) PowerPadTM Package Meets Automotive Application Requirements

Integrated power controller TPS43330-Q1 data sheet, user guide see PDF document (click to download)