MAX8517 MAXIM [Maxim Integrated Products], MAX8517 Datasheet

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MAX8517

Manufacturer Part Number
MAX8517
Description
1.425V to 3.6V Input, 1A, 0.2V Dropout LDO Regulators
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet

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The MAX8516/MAX8517/MAX8518 low-dropout linear
regulators operate from input voltages as low as 1.425V
and are able to deliver up to 1A of continuous output
current with a maximum dropout voltage of only 200mV.
The output voltage can be set from 0.5V to (V
and is 1.4% accurate over load and line variations, from
0°C to +85°C.
These regulators use small, 1µF ceramic input capaci-
tors and 4.7µF ceramic output capacitors to deliver 1A
output current. High bandwidth provides excellent tran-
sient response and limits the output voltage deviation to
45mV for a 20mA to 1A load step, with only a 4.7µF
ceramic output capacitor, and the voltage deviations can
be reduced further by increasing the output capacitor.
Designed with an internal p-channel MOSFET pass
transistor, the MAX8516/MAX8517/MAX8518 feature
low 340µA (typ) supply current during dropout condi-
tions. Soft-start reduces inrush current. Other features
include a logic-controlled shutdown mode, short-circuit
protection, and thermal-overload protection.
The MAX8517 features a power-OK (POK) output that
transitions high when the regulator output is within
±10% of its nominal output voltage. The MAX8518
features a 150ms power-on reset output.
The parts are packaged in a 10-pin µMAX
includes an exposed pad for optimal power dissipation.
19-3188; Rev 2; 9/09
µMAX is a registered trademark of Maxim Integrated Products, Inc.
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
Servers
Storage
Networking
Base Stations
Optical Modules
TOP VIEW
N.C.
N.C.
EN
IN
IN
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
MAX8516
General Description
µMAX
Post Regulators
Notebooks
PDAs
ATE
10
9
8
7
6
Applications
N.C.
OUT
OUT
FB
GND
®
package that
0.2V Dropout LDO Regulators
IN
POK
N.C.
EN
IN
IN
- 0.2V)
1
2
3
4
5
1.425V to 3.6V Input, 1A,
MAX8517
µMAX
♦ 1.425V to 3.6V Input Voltage Range
♦ Guaranteed 200mV Dropout at 1A Output Current
♦ ±1.4% Output Accuracy Over Load, Line, and
♦ Compatible with Ceramic Capacitors
♦ Fast Transient Response
♦ 320µA Operating Supply Current
♦ <25µA Shutdown Supply Current
♦ Short-Circuit Protection
♦ Thermal-Overload Protection
♦ Soft-Start Limits Inrush Current
/V Denotes an automotive qualified part.
MAX8516EUB
MAX8517EUB
MAX8517EUB/V
MAX8518EUB
Temperature (0°C to +85°C), ±0.6% Initial Accuracy
10
9
8
7
6
OFF
POWER-ON RESET
PART
N.C.
OUT
OUT
FB
GND
1.425V TO 3.6V
1µF
POWER-OK
ON
INPUT
Typical Operating Circuit
IN_
POR (MAX8518)
POK (MAX8517)
EN
N.C.
POR
EN
IN
IN
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Ordering Information
MAX8516
MAX8517
MAX8518
1
2
3
4
5
Pin Configurations
MAX8518
µMAX
OUT_
GND
FB
0.5V TO (V
10
9
8
7
6
OUTPUT
PIN-PACKAGE
10 µMAX
10 µMAX
10 µMAX
10 µMAX
IN
N.C.
OUT
OUT
FB
GND
Features
- 0.2V), 1A
4.7µF
1

Related parts for MAX8517

MAX8517 Summary of contents

Page 1

... Soft-start reduces inrush current. Other features include a logic-controlled shutdown mode, short-circuit protection, and thermal-overload protection. The MAX8517 features a power-OK (POK) output that transitions high when the regulator output is within ±10% of its nominal output voltage. The MAX8518 features a 150ms power-on reset output. ...

Page 2

... Input, 1A, 0.2V Dropout LDO Regulators ABSOLUTE MAXIMUM RATINGS IN, EN, POK (MAX8517), POR (MAX8518 GND .........................................................-0.3V to +4.0V OUT to GND ..................................................-0.3V to (IN + 0.3V) Output Short-Circuit Duration.....................................Continuous Continuous Power Dissipation (T = +70°C, EP soldered to PCB) A 10-Pin µMAX (derate 10.3mW/°C above +70°C) .........824mW Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied ...

Page 3

ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure +1.8V +1.5V IN OUT PARAMETER POR (MAX8518 ONLY) POR Reset Threshold V FB POR Output Voltage Low V FB POR Output Current High V POR ...

Page 4

Input, 1A, 0.2V Dropout LDO Regulators (Circuit of Figure +1.8V, V OUT GROUND CURRENT vs. LOAD CURRENT 375 T = +85°C A 350 325 T = +25°C A 300 275 250 0 200 ...

Page 5

Figure +1.8V +1.5V, I OUT FB VOLTAGE vs. TEMPERATURE 502 501 500 499 498 -40 - TEMPERATURE (°C) OVERCURRENT THRESHOLD vs. TEMPERATURE 1.95 1.90 1.85 1.80 1.75 -40 -15 10 ...

Page 6

... Regulator Output. Bypass with a 4.7µF ceramic capacitor to GND (a smaller OUT capacitor can be used if maximum load is less than 1A, i.e., C (max) x (1µF/200mA). Power-OK Output (MAX8517 Only). Open-drain output. Connect to a positive POK supply with a pullup resistor. If not used, leave pin unconnected. See the Detailed Description. ...

Page 7

... To shut down the device, pull EN to GND. For normal operation, connect the EN to IN. During shut- down, an internal 10kΩ resistor pulls down the output. The MAX8517 features a power-OK (POK) output to indicate the status of the output. POK remains high = +150°C. ...

Page 8

... Applications Information Capacitor Selection and Regulator Stability Capacitors are required at the MAX8516/MAX8517/ MAX8518 inputs and outputs for stable operation over the full temperature range and with load currents up to 1A. Connect a 1µF capacitor between IN and ground and a 4.7µ ...

Page 9

Chip Information TRANSISTOR COUNT: 2849 PROCESS: BiCMOS _______________________________________________________________________________________ 1.425V to 3.6V Input, 1A, 0.2V Dropout LDO Regulators For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code ...

Page 10

... Electrical Characteristics and Pin Description. 2 9/09 Added MAX8517 automotive package to Ordering Information. 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. ...

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