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PDF MAX8517 Data sheet ( Hoja de datos )
| Número de pieza | MAX8517 | |
| Descripción | 1A 0.2V Dropout LDO Regulators | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX8517 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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19-3188; Rev 1; 4/04
0µMAX
m x 5m
EVAALVUAAILTAIOBNLEKIT
www.DataSheet4U.com
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
General Description
Features
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 (VIN - 0.2V)
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® package that
includes an exposed pad for optimal power dispation.
Servers
Storage
Networking
Base Stations
Optical Modules
Applications
Post Regulators
Notebooks
PDAs
ATE
µMAX is a registered trademark of Maxim Integrated Products, Inc.
♦ 1.425V to 3.6V Input Voltage Range
♦ Guaranteed 200mV Dropout at 1A Output Current
♦ ±1.4% Output Accuracy Over Load, Line, and
Temperature (0°C to +85°C), ±0.6% Initial Accuracy
♦ 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
Ordering Information
PART
MAX8516EUB
MAX8517EUB
MAX8518EUB
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 µMAX
10 µMAX
Typical Operating Circuit
INPUT
1.425V TO 3.6V
1µF
POWER-ON RESET
POWER-OK
IN_ OUT_
MAX8516
MAX8517
MAX8518
POR (MAX8518)
POK (MAX8517)
FB
OUTPUT
0.5V TO (VIN - 0.2V), 1A
4.7µF
ON
OFF
EN
GND
Pin Configurations
TOP VIEW
EN 1
IN 2
IN 3
N.C. 4
N.C. 5
MAX8516
µMAX
10 N.C.
9 OUT
8 OUT
7 FB
6 GND
EN 1
IN 2
IN 3
POK 4
N.C. 5
MAX8517
µMAX
10 N.C.
9 OUT
8 OUT
7 FB
6 GND
EN 1
IN 2
IN 3
N.C. 4
POR 5
MAX8518
µMAX
10 N.C.
9 OUT
8 OUT
7 FB
6 GND
________________________________________________________________ Maxim Integrated Products 1
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.
1 page  
www.DataSheet4U.com
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = +1.8V, VOUT = +1.5V, IOUT = 1A, COUT = 4.7µF, CIN = 1µF, TA = +25°C.)
FB VOLTAGE vs. TEMPERATURE
502
OUTPUT RIPPLE VOLTAGE
MAX8516/17/18 toc11
501
500
499
498
-40
1.95
ILOAD = 10mA
-15 10 35 60
TEMPERATURE (°C)
85
OVERCURRENT THRESHOLD
vs. TEMPERATURE
1.90
1.85
VOUT
AC-COUPLED
1mV/div
100µs/div
SHORT-CIRCUIT CURRENT
MAX8516/17/18 toc13
VOUT
1V/div
1.80 IOUT
2A/div
1.75
-40
-15 10 35 60
TEMPERATURE (°C)
85
CASE TEMPERATURE
vs. LOAD CURRENT
75
VIN = 2.5V; TA = +25°C
60
100µs/div
45
30
15
0
0 200 400 600 800 1000
LOAD CURRENT (mA)
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet MAX8517.PDF ] | |
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