MAX5086A, MAX5086B:45V, 250mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay

250mA, 45V Input, Low-Quiescent-Current Linear Regulators in High-Power TQFN Packages

The MAX5086 high-voltage linear regulator operates from a 6.5V to 45V input voltage and delivers up to a 250mA output current. The device consumes only 70µA of quiescent current with no load and 13µA in shutdown. The device includes a SET input, that when connected to ground, selects a preset output voltage of 3.3V (MAX5086A) or 5.0V (MAX5086B). Alternatively, the output voltage can be adjusted from 2.5V to 11V by simply connecting SET to the regulator's output through a resistive divider network. The MAX5086 also provides an open-drain, active-low microprocessor reset output that asserts when the regulator output drops below the preset output voltage threshold. An external capacitor programs the reset timeout period. Other features include an enable input, thermal shutdown, and short-circuit protection. The MAX5086 operates over the automotive temperature range of -40°C to +125°C and is available in a 16-pin TQFN thermally enhanced package.

Key Features
  • Wide Operating Input Voltage Range (6.5V to 45V)
  • Thermally Enhanced Package Dissipates 2.6W at TA = +70°C (16-Pin TQFN)
  • Guaranteed 250mA Output Current
  • 70µA Quiescent Supply Current
  • Preset 3.3V, 5.0V, or Adjustable 2.5V to 11V Output Voltage
  • Remote Load Sense
  • Integrated Microprocessor Reset Circuit with Programmable Timeout Period
  • Thermal and Short-Circuit Protection
  • -40°C to +125°C Operating Temperature Range
MAX5086: Functional Diagram
MAX5086: Functional Diagram
Applications/Uses
  • Home Security/Safety
  • Industrial
  • Networking
DataSheet
TitleDownload file
MAX5086-MAX5086B Data SheetMAX5086-MAX5086B.pdf
Parametrics
Part NumberRegulatorsVIN
(V)
VIN
(V)
Preset VOUT
(V)
Adj. VOUT
(V)
Adj. VOUT
(V)
VDROPOUT @Rated ILOAD
(V)
Rated ILOAD
(mA)
Rated ILOAD
(mA)
ICC
(µA)
Low Batt./ Pwr. Fail OutPOK/Reset Thresh.
(V)
WatchdogReverse Batt. Protect.Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxminmaxtypmaxnomSee Notes
MAX508616.5453.3
5
2.5110.9250250115NoVout-8%NoNo-40 to +125TQFN/16$1.56 @1k
Design kits & evaluation modules
Related Products
  • MAX6796:High-Voltage, Micropower, Single/Dual Linear Regulators with Supervisory Functions
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX5086AATENo Longer AvailableMAX5086AATE+TQFN,;16 pin;26 mm²-40°C to +125°CNo
MAX5086AATE+ActiveTQFN,;16 pin;26 mm²-40°C to +125°CLead Free
MAX5086AATE+TActiveTQFN,;16 pin;26 mm²-40°C to +125°CLead Free
MAX5086AATE-TNo Longer AvailableMAX5086AATE+TQFN;16 pin-40°C to +125°CSee data sheet
MAX5086AATE/V+ActiveTQFN,;16 pin;26 mm²-40°C to +125°CLead Free
MAX5086AATE/V+TActiveTQFN,;16 pin;26 mm²-40°C to +125°CLead Free
MAX5086-MAX5086B.pdf MAX5086B
功能框图 MAX5086