max5086aatet Maxim Integrated Products, Inc., max5086aatet Datasheet

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max5086aatet

Manufacturer Part Number
max5086aatet
Description
Max5086 45v, 250ma, Low-quiescent-current Linear Regulator With Adjustable Reset Delay
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
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 shut-
down. The device includes a SET input, that when con-
nected 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 tempera-
ture range of -40°C to +125°C and is available in a
16-pin TQFN thermally enhanced package.
19-3878; Rev 2; 2/08
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Linear Regulator with Adjustable Reset Delay
Automotive
Industrial
Home Security/Safety
Networking
________________________________________________________________ Maxim Integrated Products
General Description
45V, 250mA, Low-Quiescent-Current
Applications
♦ Wide Operating Input Voltage Range (6.5V to 45V)
♦ Thermally Enhanced Package Dissipates
♦ Guaranteed 250mA Output Current
♦ 70µA Quiescent Supply Current
♦ Preset 3.3V, 5.0V, or Adjustable 2.5V to 11V
♦ Remote Load Sense
♦ Integrated Microprocessor Reset Circuit with
♦ Thermal and Short-Circuit Protection
♦ -40°C to +125°C Operating Temperature Range
Note:
ating temperature range.
+ Denotes lead-free package.
* EP = Exposed paddle.
MAX5086AATE+
MAX5086AATE
MAX5086BATE+
MAX5086BATE
Output Voltage
Programmable Timeout Period
TOP VIEW
2.6W at T
All devices are specified over the -40°C to +125°C oper-
PART
N.C.
N.C.
N.C.
N.C.
A
= +70°C (16-Pin TQFN)
13
14
15
16
PIN-
PACKAGE
16 TQFN-EP*
16 TQFN-EP*
16 TQFN-EP*
16 TQFN-EP*
+
Ordering Information
12
1
MAX5086
TQFN
11
2
Pin Configuration
10
3
VOLTAGE (V)
9
4
OUTPUT
3.3
3.3
5.0
5.0
5
8
7
6
GND
OUTSENSE
OUT
OUT
Features
T1655-2
T1655-2
T1655-2
T1655-2
CODE
PKG
1

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max5086aatet Summary of contents

Page 1

Rev 2; 2/08 45V, 250mA, Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay General Description The MAX5086 high-voltage linear regulator operates from a 6.5V to 45V input voltage and delivers 250mA output current. The device consumes only ...

Page 2

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay ABSOLUTE MAXIMUM RATINGS IN to GND (do not exceed package power dissipation)...............................-0.3V to +50V IN to GND (T ≤ 300ms, I ≤ 250mA) ..................-0.3V to +42V OUT EN to GND..............................................................-0.3V to ...

Page 3

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay ELECTRICAL CHARACTERISTICS (continued 14V 1mA 47µF (low ESR OUT IN unless otherwise noted. Typical specifications are at T PARAMETER SYMBOL Enable Input Current ...

Page 4

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay ( 14V 47µF (low ESR OUTPUT VOLTAGE vs. INPUT VOLTAGE 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 I ...

Page 5

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay ( 14V 47µF (low ESR INPUT VOLTAGE STEP RESPONSE MAX5086 toc10 I = 50mA OUT V OUT AC-COUPLED 0V 500mV/div 0V 26V ...

Page 6

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay PIN NAME 1, 12–16 N.C. No Connection. Not internally connected. Enable Input. Drive EN high to turn on the regulator. Force EN low to place the device in shutdown 2 EN ...

Page 7

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay IN MAX5086 CONTROL LOGIC, THERMAL SHUTDOWN, EN AND OVERCURRENT PROTECTION CT COMPARATOR 0. REF Figure 1. Functional Diagram _______________________________________________________________________________________ ERROR AMPLIFIER V REF INTERNAL SUPPLY VOLTAGE 2μA DELAY COMPARATOR ...

Page 8

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay Detailed Description The MAX5086 high-voltage linear regulator includes an integrated microprocessor reset circuit with an adjustable reset timeout period (see the Adjustable Reset Timeout Period (CT) section). The device guaran- tees ...

Page 9

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay Applications Information Output Voltage Selection The MAX5086 features dual-mode operation, in either a preset voltage mode or an adjustable mode. In preset voltage mode, internal feedback resistors set the MAX5086’s output ...

Page 10

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay Example +125° +14V +5V OUT Calculate package dissipation at the given temperature as follows − ° 666 ...

Page 11

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information 11 ...

Page 12

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 12 ______________________________________________________________________________________ Package Information (continued) ...

Page 13

... Maxim Integrated Products DESCRIPTION Updated data sheet with improved output voltage parameters Corrected errors in data sheet, reduced operating range, and removed unreleased product from ordering information is a registered trademark of Maxim Integrated Products, Inc. Revision History PAGES CHANGED 2 1–15 ...

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