MAX5087BATE+ Maxim Integrated Products, MAX5087BATE+ Datasheet

IC REG LINEAR 400MA 16-TQFN-EP

MAX5087BATE+

Manufacturer Part Number
MAX5087BATE+
Description
IC REG LINEAR 400MA 16-TQFN-EP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5087BATE+

Regulator Topology
Positive Fixed or Adjustable
Voltage - Output
5V, 2.5 ~ 11 V
Voltage - Input
6.5 ~ 45 V
Voltage - Dropout (typical)
0.9V @ 400mA
Number Of Regulators
1
Current - Output
400mA (Min)
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Polarity
Positive
Number Of Outputs
1
Output Type
Adjustable, Fixed
Output Voltage
2.5 V to 11 V, 5 V
Output Current
0.4 A
Line Regulation
1 mV / V
Load Regulation
0.1 Ohms
Dropout Voltage (max)
900 mV
Input Voltage Max
45 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Maximum Power Dissipation
2666 mW
Mounting Style
SMD/SMT
Operating Temperature Range
- 40 C to + 125 C
Reference Voltage
1.235 V
Voltage Regulation Accuracy
3 %
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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 fea-
tures include an enable input, thermal shutdown, and
short-circuit protection.
The MAX5087 operates over the automotive tempera-
ture range of -40°C to +125°C and is available in a 16-
pin TQFN thermally enhanced package.
19-3964; Rev 3; 2/08
For pricing, delivery, and ordering information, please contact Maxim 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, 400mA, Low-Quiescent-Current
Applications
♦ Wide Operating Input Voltage Range (6.5V to 45V)
♦ Thermally Enhanced Package Dissipates
♦ Guaranteed 400mA Output Current
♦ 70µA Quiescent Supply Current
♦ Preset 3.3V, 5.0V, or Adjustable 2.5V to 11V
♦ Remote Load Sense Capability
♦ Enable Input
♦ Integrated µP Reset Circuit with Programmable
♦ Thermal and Short-Circuit Protection
♦ -40°C to +125°C Operating Temperature Range
Note: All devices are specified over the -40°C to +125°C oper-
ating temperature range.
*EP = Exposed paddle.
+Denotes lead-free package.
MAX5087AATE+
MAX5087BATE+
Output Voltage
Timeout Period
2.6W at T
PART
TOP VIEW
N.C.
N.C.
N.C.
N.C.
A
= +70°C (16-Pin TQFN)
13
14
15
16
16 TQFN-EP*
16 TQFN-EP*
PIN-
PACKAGE
+
Ordering Information
12
1
MAX5087
TQFN
11
2
Pin Configuration
10
3
T1655-2
T1655-2
9
4
CODE
PKG
8
7
6
5
GND
OUTSENSE
OUT
OUT
Features
VOLTAGE (V)
OUTPUT
3.3
5.0
1

Related parts for MAX5087BATE+

MAX5087BATE+ Summary of contents

Page 1

... Integrated µP Reset Circuit with Programmable Timeout Period ♦ Thermal and Short-Circuit Protection ♦ -40°C to +125°C Operating Temperature Range PART Applications MAX5087AATE+ MAX5087BATE+ Note: All devices are specified over the -40°C to +125°C oper- ating temperature range. *EP = Exposed paddle. +Denotes lead-free package. TOP VIEW Features = +70° ...

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 ...

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 MAX5087 toc10 I = 50mA OUT V OUT AC-COUPLED 500mV/div 26V V IN ...

Page 6

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay PIN NAME 1, 12–16 N.C. No Connection. Not internally connected nab l e Inp ut tur n on ...

Page 7

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay IN MAX5087 CONTROL LOGIC, THERMAL SHUTDOWN, EN AND OVERCURRENT PROTECTION CT COMPARATOR 0. REF Figure 1. Functional Diagram _______________________________________________________________________________________ ERROR AMPLIFIER V REF 1.235V INTERNAL SUPPLY VOLTAGE 2μA DELAY ...

Page 8

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay Detailed Description The MAX5087 high-voltage linear regulator includes an integrated µP reset circuit with an adjustable reset time- out period (see the Adjustable Reset Timeout Period (CT) section). The device guarantees ...

Page 9

... After determining the allowable package dissipation calculate the maximum output current using the follow- ing formula ≅ I OUT(MAX) − OUT Dual Mode is a trademark of Maxim Integrated Products, Inc. _______________________________________________________________________________________ operation ⎞ ⎟ ⎠ Figure 3. Calculated Maximum Power Dissipation vs. Temperature The above equations do not include the negligible power dissipation from self-heating due to the IC ground current ...

Page 10

Low-Quiescent-Current Linear Regulator with Adjustable Reset Delay Calculate package dissipation at the given temperature as follows − ° P 2.666W 0.0333 (125 C D ° C And establish the maximum current: (1.191W OUT(MAX) − ...

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 cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2008 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...

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