MAX6330LUR Maxim Integrated Products, MAX6330LUR Datasheet

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MAX6330LUR

Manufacturer Part Number
MAX6330LUR
Description
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX6330LUR.pdf (8 pages)

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The MAX6330/MAX6331 combine a precision shunt
regulator with a power-on reset function in a single
SOT23-3 package. They offer a low-cost method of
operating small microprocessor (µP)-based systems
from high-voltage sources, while simultaneously pro-
tecting µPs from power-up, power-down, and brownout
conditions.
Both active-low (MAX6330) and active-high (MAX6331)
push/pull output versions are available. The output
voltage has ±1.5% tolerance. The MAX6330/MAX6331
operate over a wide shunt current range from 100µA to
50mA, and offer very good transient immunity.
A 3-pin SOT23 package allows for a significant reduc-
tion in board space and improves reliability compared
to multiple-IC/discrete solutions. These devices have a
minimum order increment of 2,500 pieces.
________________________Applications
19-1348; Rev 1; 12/05
________________General Description
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.
____________Typical Operating Circuit
*SEE THE SECTION CHOOSING THE BYPASS CAPACITOR (C
V
IN
Controllers
Household Appliances
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Size-Sensitive Equipment
Automotive
I
IN
R
S
V
SHUNT
GND
SHUNT
I
SHUNT
________________________________________________________________ Maxim Integrated Products
MAX6330
MAX6331
(RESET)
Precision Shunt Regulators with Reset
RESET
I
LOAD
C
0.1µF*
L
RESET
INPUT
L
)
GND
V
µP
CC
♦ 100µA to 50mA Shunt Current Range
♦ Low Cost
♦ 3-Pin SOT23 Package
♦ ±1.5% Tolerance on Output Voltage
♦ Three Shunt Voltages Available: 5V, 3.3V, 3.0V
♦ Precision Power-On Reset Threshold:
♦ 140ms Reset Timeout Period—No External
*Insert the desired suffix letter (from the table below) into the
blank to complete the part number. These devices have a mini-
mum order increment of 2,500 pieces.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
____________________________Features
_______________Ordering Information
___________________Pin Configuration
MAX6330_UR-T
MAX6331_UR-T
SUFFIX
Components Required
L
T
S
TOP VIEW
( ) ARE FOR THE MAX6331
1.5% Tolerance Available with Either
RESET (MAX6331) or RESET (MAX6330)
Outputs
PART*
THRESHOLD
RESET
4.63
3.06
2.78
(V)
(RESET)
RESET
GND
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
1
2
REGULATOR
VOLTAGE (V)
SHUNT
SOT23-3
MAX6330
MAX6331
5.0
3.3
3.0
in SOT23-3
MAX6330 MAX6331
3
PIN-PACKAGE
3 SOT23-3
3 SOT23-3
EMAA
EKAA
EDAA
SHUNT
TOP MARK
SOT
ENAA
ELAA
EPAA
1

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MAX6330LUR Summary of contents

Page 1

... MAX6331 RESET (RESET) GND *SEE THE SECTION CHOOSING THE BYPASS CAPACITOR (C ________________________________________________________________ Maxim Integrated Products 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. ____________________________Features ♦ 100µA to 50mA Shunt Current Range ♦ Low Cost ♦ ...

Page 2

Precision Shunt Regulators with Reset in SOT23-3 ABSOLUTE MAXIMUM RATINGS Terminal Voltage (with respect to GND), All Pins Except SHUNT....................-0. Input Current (I ) ........................................................60mA SHUNT Output Current (RESET/RESET)..........................................20mA Short-Circuit Duration.................................................Continuous Stresses beyond those listed under “Absolute Maximum ...

Page 3

Precision Shunt Regulators with Reset ELECTRICAL CHARACTERISTICS (continued 1mA 0.1µ -40°C to +85°C, unless otherwise noted. Typical values are at T SHUNT L A PARAMETER SYMBOL RESET/RESET Output V OL Voltage Low (Note 4) ...

Page 4

Precision Shunt Regulators with Reset in SOT23-3 __________________________________________Typical Operating Characteristics (Typical Operating Circuit 0.1µF, I LOAD L NORMALIZED SHUNT VOLTAGE vs. SHUNT CURRENT 1.005 T = +25°C A 1.000 T = -40°C A 0.995 T = +85°C A ...

Page 5

Precision Shunt Regulators with Reset ______________________________________________________________Pin Description PIN NAME MAX6330 MAX6331 1 1 GND RESET 2 — 2 RESET — SHUNT _______________Detailed Description A microprocessor’s (µP’s) reset input starts the µ known state. The MAX6330/MAX6331 µP ...

Page 6

Precision Shunt Regulators with Reset in SOT23-3 resistor used. Ensure that the resistor’s power rating is adequate, using the following general power equation IN(max) SHUNT ...

Page 7

Precision Shunt Regulators with Reset capacitor allows a sharper drop in V load transient occurs, and will suffer from a steeper overshoot when the device re-enters regulation. On the other hand, the increased compensation on a larger bypass capacitor will ...

Page 8

... 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. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc ...

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