Infineon OPTIREG TLS412 D0EPV Series, Руководство пользователя, Страница: 2 / 27

1 Introduction
1.1 General description
The OPTIREG
™
switcher TLS412xD0EPVxx is a family of synchronous step down regulators especially designed
for automotive applications.
The devices reduce the required amount of external components and thus system cost and board space due to:
•
integrated power stages
• soft-start feature
• integrated compensation networks
The wide input voltage range and a 100% duty cycle operation mode make the devices suitable for battery
cranking scenarios in automotive applications. The wide switching frequency range allows the selection of
appropriate coils and capacitors. The switching frequency can be synchronized to an external clock signal.
Spread spectrum frequency modulation can be activated to improve the EMI performance in PWM operation.
The devices offer low current consumption in PFM mode at light loads to optimize efficiency. The OPTIREG
™
switcher TLS412xD0EPVxx can detect undervoltage and overvoltage conditions of the output voltage and
indicate this via the reset output signal. Overcurrent and overload protection avoid excessive current to protect
the device in short circuit condition at the buck converter output. The integrated thermal shutdown feature
protects the device from overheating. The enhanced PG-TSDSO-14 exposed pad package offers advantageous
thermal performance in the application.
This demoboard supports all members of the OPTIREG
™
switcher TLS412xD0EPVxx family, see Table 1 . For each
product of the family, the demoboard is available in two different configurations. One configuration is
populated with passive components to support the low switching frequency (LF) region of the device, while the
other configuration supports the high switching frequency (HF) region.
Table 1 OPTIREG
™
switcher TLS412xD0EPVxx family overview
Sales name Output current Output voltage
TLS4120D0EPV33 2 A 3.3 V
TLS4120D0EPV50 2 A 5.0 V
TLS4120D0EP 2 A adjustable (3 V to 10 V)
TLS4125D0EPV33 2.5 A 3.3 V
TLS4125D0EPV50 2.5 A 3.3 V
TLS4125D0EP 2.5 A adjustable (3 V to 10 V)
OPTIREG
™
switcher TLS412xD0EPVxx demoboard
Z8F68163134
Introduction
User manual 2 Rev. 1.1
2020-06-30