max5084attt Maxim Integrated Products, Inc., max5084attt Datasheet

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max5084attt

Manufacturer Part Number
max5084attt
Description
65v, 200ma, Low-quiescent-current Linear Regulators In Tdfn
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX5084/MAX5085 high-voltage linear regulators
operate from an input voltage range of 6.5V to 65V and
deliver up to 200mA of output current. These devices
consume only 50µA (typ) of quiescent current with no
load and 6µA (typ) in shutdown (EN pulled low). Both
devices include a SET input, which when connected to
ground, selects a preset output voltage of 5V
(MAX5084) or 3.3V (MAX5085). Alternatively, the out-
put voltage can be adjusted from 2.54V to 11V
by connecting the SET pin to the regulator’s output
through a resistive divider network. The MAX5084/
MAX5085 also include an OUT_SENSE pin, which
allows remote voltage sensing right at the load, thus
eliminating the voltage drop caused by the line imped-
ance. Both devices are short-circuit protected and
include thermal shutdown.
The MAX5084/MAX5085 operate over the -40°C to
+125°C automotive temperature range and are avail-
able in a space-saving 3mm x 3mm thermally
enhanced 6-pin TDFN package.
19-3928; Rev 1; 4/06
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.
V
IN
TO 65V
= 6.5V
Automotive
Industrial
Home Security
Telecom/Networking
10μF
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
IN
EN
GND
MAX5084
MAX5085
General Description
OUT_SENSE
65V, 200mA, Low-Quiescent-Current
OUT
SET
Applications
10μF
3.3V (MAX5085)
5V (MAX5084)
LOAD
Linear Regulators in TDFN
♦ Wide Operating Input Voltage Range (6.5V to 65V)
♦ Thermally Enhanced 3mm x 3mm 6-Pin TDFN
♦ Guaranteed 200mA Output Current
♦ 50µA No-Load Supply Current
♦ Preset 3.3V, 5.0V, or Adjustable (from 2.54V to 11V)
♦ Remote Load Sense
♦ Thermal and Short-Circuit Protection
♦ -40°C to +125°C Operating Temperature Range
♦ SET Input for Adjustable Output Voltage
♦ Enable Input
Note: All devices are specified over the -40°C to +125°C oper-
ating temperature range.
*EP = Exposed paddle.
+Denotes lead-free package.
Selector Guide appears at end of data sheet.
M A X5 0 8 4 ATT+ T
M A X5 0 8 5 ATT+ T
Package Dissipates 1.905W at +70°C
Output Voltage
TOP VIEW
PART
PIN-
PACKAGE
6 TDFN-EP*
6 TDFN-EP*
+
Ordering Information
1
6
MAX5084
MAX5085
TDFN
2
5
Pin Configuration
4
3
MARK
TOP
AJJ
AJI
Features
T633-2
T633-2
CODE
PKG
1

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max5084attt Summary of contents

Page 1

Rev 1; 4/06 65V, 200mA, Low-Quiescent-Current General Description The MAX5084/MAX5085 high-voltage linear regulators operate from an input voltage range of 6.5V to 65V and deliver up to 200mA of output current. These devices consume only 50µA (typ) of quiescent ...

Page 2

Low-Quiescent-Current Linear Regulators in TDFN ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +80V EN to GND..............................................................-0.3V to +80V SET, OUT, OUT_SENSE to GND................-0.3V to the lesser of (V OUT_SENSE to OUT..............................................-0.3V to +0.3V ≤ 65V) ..............................Continuous Short-Circuit ...

Page 3

Low-Quiescent-Current ELECTRICAL CHARACTERISTICS (continued 14V 1mA 10µ OUT IN OUT are +25°C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL Enable Voltage V EN Enable ...

Page 4

Low-Quiescent-Current Linear Regulators in TDFN (V = 14V 10µ OUT EN 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 ...

Page 5

Low-Quiescent-Current (V = 14V 10µ OUT EN INPUT VOLTAGE STEP RESPONSE MAX5084 toc10 V IN 20V/div 0V V OUT 500mV/div AC-COUPLED 400μs/div ENABLE STARTUP RESPONSE MAX5084 toc13 V = ...

Page 6

Low-Quiescent-Current Linear Regulators in TDFN PIN NAME 1 IN Regulator Supply Input. Supply voltage ranges from 6.5V to 65V. Bypass with a 10µF capacitor to GND. Enable Input. Force EN high to turn on the regulator. Pull EN ...

Page 7

... However, if accurate output voltage regulation at the load is required, then connect OUT_SENSE directly to the load. Dual Mode is a trademark of Maxim Integrated Products, Inc. _______________________________________________________________________________________ Linear Regulators in TDFN When the junction temperature exceeds +160°C, an internal thermal sensor signals the shutdown logic to turn off the pass transistor and allows the IC to cool ...

Page 8

Low-Quiescent-Current Linear Regulators in TDFN 65V IN OUT 10μF MAX5084 MAX5085 OUT_SENSE EN GND SET Figure 2. Adjustable Output Voltage Operation Use Figure 3 to determine the allowable package dissi- pation for a ...

Page 9

Low-Quiescent-Current Calculate package dissipation at the given temperature as follows 1.905W D Find the maximum output current: 1 905 . 476 OUT MAX ( ) − ...

Page 10

Low-Quiescent-Current Linear Regulators in TDFN (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.) 10 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE, 6,8,10 & 14L, TDFN, ...

Page 11

... BSC T1033-2 10 1.50±0.10 2.30±0.10 0.50 BSC T1433-1 14 1.70±0.10 2.30±0.10 0.40 BSC T1433-2 14 1.70±0.10 2.30±0.10 0.40 BSC is a registered trademark of Maxim Integrated Products, Inc. e JEDEC SPEC b [(N/2)- MO229 / WEEA 0.40±0.05 1.90 REF 0.40±0.05 1.90 REF MO229 / WEEA MO229 / WEEC 0.30±0.05 1.95 REF MO229 / WEEC 0.30±0.05 1.95 REF MO229 / WEEC 0.30± ...

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