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NCV97311A: Automotive Battery-Connected Low-Iq Multi-Output Power Management Unit with 3 Buck Regulators

Datasheet: Power Management Unit Automotive, Battery-Connected, Multi-Output
Rev. 3 (248kB)
Product Overview
»View Material Composition
» Product Change Notification
The NCV97311A is a 3−output regulator consisting of a low−Iq battery−connected 3 A, 2 MHz non−synchronous switcher and two low−voltage 1.5 A, 2 MHz synchronous switchers; all using integrated power transistors. The high−voltage switcher is capable of converting a 4.1 V to 18 V battery input to a 5 V or 3.3 V output at a constant 2 MHz switching frequency, delivering up to 3 A. In overvoltage conditions up to 37 V, the switching frequency folds back to 1 MHz; in load dump conditions up to 45 V the regulator shuts down. The output of the battery−connected buck regulator serves as the low voltage input for the 2 downstream synchronous switchers. Each downstream output is adjustable from 1.2 V to 3.3 V, with a 1.5 A average current limit and a constant 2 MHz switching frequency. Each switcher has an independent enable and reset pin, giving extra power management flexibility. For low−Iq operating mode, the low−voltage switchers are disabled and the standby rail is supplied by a low−Iq LDO (up to 150 mA) with a typical Iq of 30 uA. The LDO regulator is in parallel to the high−voltage switcher, and is activated when the switcher is forced in standby mode. All 3 SMPS outputs use peak current mode control with internal slope compensation, internally−set soft−start, battery undervoltage lockout, battery overvoltage protection, cycle−by−cycle current limiting, hiccup mode short−circuit protection and thermal shutdown. An error flag is available for diagnostics.
Features
 
  • 5.0 V and 3.3 V Versions Available
  • Low Quiescent Current in Standby Mode
  • Programmable Spread Spectrum for EMI Reduction
  • 2 Microcontroller-Enabled Low Voltage Synchronous Buck Converters
  • Large Conversion Ratio of 18 V to 3.3 V Battery Connected Switcher
  • Wide Input of 4.1 to 45 V with Undervoltage Lockout (UVLO)
  • Fixed Frequency Operation Adjustable from 2.0 to 2.6 MHz
  • Internal 1.5 ms Soft−starts
  • Cycle−by−cycle Current Limit Protections
  • Hiccup Overcurrent Protections (OCP)
  • Individual Reset Pins with Adjustable Delays
  • QFN Package with Wettable Flanks (pin edge plating)
  • NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant
Applications   End Products
  • Infotainment
  • Instruments clusters
  • Body Electronics
  • Telematics
  • ECU
 
  • Automotive
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCV97311MW33AGEVB Active
Pb-free
NCV97311MW33AGEVB Evaluation Board
NCV97311MW50AGEVB Active
Pb-free
The NCV97311A is 3−output regulator.
Availability & Samples
Specifications
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCV97311MW33AR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV97311A, NCV97311A 3.3V version QFNW-32 484AB 1 260 Tape and Reel 5000 $2.6666
NCV97311MW50AR2G Active
AEC Qualified
PPAP Capable
Pb-free
Halide free
NCV97311A, NCV97311A 5.0V version QFNW-32 484AB 3 260 Tape and Reel 5000 $2.6666
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 5,000
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
NCV97311MW33AR2G  
 $2.6666 
Pb
A
H
P
 Active   
QFNW-32
NCV97311MW50AR2G  
 $2.6666 
Pb
A
H
P
 Active   
QFNW-32
Case Outlines
484AB   
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