MAX5087 45V, 400mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay

Description

The MAX5087 high-voltage linear regulator operates from an input voltage of 6.5V to 45V and delivers up to 400mA of output current. The device consumes only 70µA of quiescent current with no load and 11µA in shutdown. The device includes a SET input, that when connected to ground, selects a preset output voltage of 3.3V (MAX5087A) or 5.0V (MAX5087B). 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 MAX5087 also provides an open-drain, active-low microprocessor (µP) 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 MAX5087 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

Applications/Uses

Wide Operating Input Voltage Range (6.5V to 45V)
Thermally Enhanced Package Dissipates
- 2.6W at T_A = +70°C (16-Pin TQFN)
Guaranteed 400mA Output Current
70µA Quiescent Supply Current
Preset 3.3V, 5.0V, or Adjustable 2.5V to 11V Output Voltage
Remote Load Sense Capability
Enable Input
Integrated µP Reset Circuit with Programmable Timeout Period
Thermal and Short-Circuit Protection
-40°C to +125°C Operating Temperature Range

	Automotive
	Home Security/Safety
	Industrial
	Networking

Key Specifications: Linear Regulators

Part Number

Regulators per Pkg.

Min. V_IN (V)

Max. V_IN (V)

Preset V_OUT (V)

Min. Adjustable V_OUT (V)

Max. Adjustable V_OUT (V)

Typ. V_DROPOUT@ Rated I_LOAD (V)

Rated I_LOAD (mA)

Max. I_CC (µA)

Low Battery/ Power Fail Output

POK/ Reset Output

POK/ Reset Output Type

Nominal POK/Reset Threshold (V)

Min. Reset Pulse Width (ms)

Watchdog

Reverse Battery Protection

Industry Qualified

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX5087

6.5

3.3
5.0

2.5

0.9

400

150

Reset

Open Drain Active Low

Vout-8%

Adj

Automotive - General

THIN QFN/16

-40 to +125

$1.24 @ 1k

See All Linear Regulators (138)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Ordering Information

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-8 of 8

MAX5087A

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX5087AATE

THIN QFN;16 pin;26 mm²
Dwg: 21-0140L (PDF)
Use pkgcode/variation: T1655-2*

-40°C to +125°C

See data sheet
Materials Analysis

MAX5087AATE+T

THIN QFN;16 pin;26 mm²
Dwg: 21-0140L (PDF)
Use pkgcode/variation: T1655+2*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5087AATE+

THIN QFN;16 pin;26 mm²
Dwg: 21-0140L (PDF)
Use pkgcode/variation: T1655+2*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5087AATE-T

-40°C to +125°C

See data sheet

MAX5087B

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX5087BATE

THIN QFN;16 pin;26 mm²
Dwg: 21-0140L (PDF)
Use pkgcode/variation: T1655-2*

-40°C to +125°C

See data sheet
Materials Analysis

MAX5087BATE+

THIN QFN;16 pin;26 mm²
Dwg: 21-0140L (PDF)
Use pkgcode/variation: T1655+2*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5087BATE+T

THIN QFN;16 pin;26 mm²
Dwg: 21-0140L (PDF)
Use pkgcode/variation: T1655+2*

-40°C to +125°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX5087BATE-T

-40°C to +125°C

See data sheet

Related Products

MAX5087 45V, 400mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay
MAX6791, MAX6792, MAX6793, MAX6794, MAX6795, MAX6796 High-Voltage, Micropower, Single/Dual Linear Regulators with Supervisory Functions