A6902D View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
A6902D
STMicroelectronics
'A6902D' PDF : 33 Pages View PDF
A6902D
Datasheet
Up to 1 A step down switching regulator with adjustable current limit for
automotive applications
S O-8
Maturity status link
A6902D
Features
• Qualified following the AEC-Q100 requirements
• Up to 1 A DC output current
• Operating input voltage from 8 V to 36 V
• Output voltage adjustable from 1.235 V to 35 V
• Precise 3.3 V (±2 %) reference voltage
• 250 kHz Internally fixed frequency
• Voltage feedforward
• Zero-load current operation
• Internal current limiting
• Protection against feedback disconnection
• Thermal shutdown
Applications
• Automotive applications
• Adjustable current generator
• Simple step-down converters with adjustable current limit
Description
The A6902D is a complete step down switching regulator with adjustable current
limit. Based on a voltage mode structure it integrates an additional current error
amplifier to implement both a constant voltage and constant current control.
The current limit programming is very simple and accurate (± 5%) selecting the
proper sensing resistor.
The DC-DC converter can be used either as a voltage source with adjustable current
limit (set by using the external sense resistor) or as current source to charge NiMH /
NiCd batteries or drive voltage load like LEDs.
The internal P-Channel DMOS transistor (typ. RDSON 250 mΩ) assures high
efficiency and minimum dropout even at high output current level.
DS5503 - Rev 6 - October 2018
For further information contact your local STMicroelectronics sales office.
www.st.com
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