STEVAL-ISA189V1:38 V, 1.5 A synchronous step-down switching regulator evaluation board based on A6986F5V
The STEVAL-ISA189V1 is a product evaluation board based on the ST
synchronous step-down switching regulator A6986F5V, which can deliver up to 1.5 A and, with
its 100% duty cycle ability to withstand cold crank events and wide input operating voltage
range, represents the ideal choice for battery-powered automotive systems. Synchronous
rectification helps achieve higher efficiency at full load as well as application compactness,
while high-frequency switching (programmable up to 2 MHz) helps reduce the cost and size of
power passive components while remaining outside the AM band. The device can operate in low
consumption mode (LCM), with a quiescent current of 30 μA that ensures high efficiency under
light load, which is a requirement in typical car body applications that are active when a car
is parked. A low noise mode (LNM) can be selected to meet the requirements of infotainment
applications with forced PWM mode under all load conditions. The default board configuration
is LCM active, 500 kHz switching frequency, high ISKIP
current and the switchover feature enabled, but all of these settings can be easily changed so
the user can evaluate different application scenarios.
Key Features
- AECQ100 qualification
- 1.5 A DC output current
- 4 V to 38 V operating input voltage
- Low consumption mode or low noise mode
- Programmable ISKIP
current
- 45 μA IQ
at light load (LCM
VIN
= 12 V)
- 8 μA IQ-SHTDWN
- Adjustable fSW
(250 kHz - 2
MHz)
- Fixed output voltage VOUT
= 5
V
- Embedded output voltage supervisor
- Synchronization
- Adjustable soft-start time
- Internal current limiting
- Overvoltage protection
- Output voltage sequencing
- Peak current mode architecture
- RDS(on)HS
= 180 mΩ; RDS(on)LS
= 150 mΩ
- Thermal shutdown
- RoHS compliant
产品规格
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
许可协议
样片和购买
型号 | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
---|
STEVAL-ISA189V1 | A6986F5V | 24.50 | 1 | NEC | EAR99 | ITALY |
质量和可靠性
型号 | Package | Grade | RoHS Compliance Grade | Material Declaration** |
---|
STEVAL-ISA189V1 | CARD | Industrial | Ecopack2 | |