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PDF MAX604 Data sheet ( Hoja de datos )
| Número de pieza | MAX604 | |
| Descripción | 5V/3.3V or Adjustable / Low-Dropout / Low IQ / 500mA Linear Regulators | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX604 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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19-0269; Rev 0; 9/94
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 500mA Linear Regulators
_______________General Description
The MAX603/MAX604 low-dropout, low quiescent cur-
rent, linear regulators supply 5V, 3.3V, or an adjustable
output for currents up to 500mA. They are available in a
1.8W SO package. Typical dropouts are 320mV at 5V
and 500mA, or 240mV at 3.3V and 200mA. Quiescent
currents are 15µA typ and 35µA max. Shutdown turns
off all circuitry and puts the regulator in a 2µA off mode.
A unique protection scheme limits reverse currents
when the input voltage falls below the output. Other fea-
tures include foldback current limiting and thermal
overload protection.
The output is preset at 3.3V for the MAX604 and 5V for
the MAX603. In addition, both devices employ Dual
Mode™ operation, allowing user-adjustable outputs
from 1.25V to 11V using external resistors. The input
voltage supply range is 2.7V to 11.5V.
The MAX603/MAX604 feature a 500mA P-channel
MOSFET pass transistor. This transistor allows the
devices to draw less than 35µA over temperature, inde-
pendent of the output current. The supply current
remains low because the P-channel MOSFET pass tran-
sistor draws no base currents (unlike the PNP transis-
tors of conventional bipolar linear regulators). Also,
when the input-to-output voltage differential becomes
small, the internal P-channel MOSFET does not suffer
from excessive base current losses that occur with sat-
urated PNP transistors.
________________________Applications
5V and 3.3V Regulators
1.25V to 11V Adjustable Regulators
Battery-Powered Devices
Pagers and Cellular Phones
Portable Instruments
Solar-Powered Instruments
__________Typical Operating Circuit
____________________________Features
o 500mA Output Current, with Foldback Current
Limiting
o High-Power (1.8W) 8-Pin SO Package
o Dual Mode™ Operation: Fixed or Adjustable
Output from 1.25V to 11V
o Large Input Range (2.7V to 11.5V)
o Internal 500mA P-Channel Pass Transistor
o 15µA Typical Quiescent Current
o 2µA (Max) Shutdown Mode
o Thermal Overload Protection
o Reverse-Current Protection
______________Ordering Information
PART
MAX603CPA
MAX603CSA
MAX603C/D
MAX603EPA
MAX603ESA
MAX603MJA
MAX604CPA
MAX604CSA
MAX604C/D
MAX604EPA
MAX604ESA
MAX604MJA
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP**
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP**
* Dice are tested at TA = +25°C, DC parameters only.
** Contact factory for availability.
__________________Pin Configuration
BATTERY
IN OUT
MAX603
MAX604
CIN OFF
10µF
GND SET
OUTPUT
VOLTAGE
COUT
10µF
TOP VIEW
IN 1
GND 2
GND 3
OFF 4
MAX603
MAX604
8 OUT
7 GND
6 GND
5 SET
DIP/SO
™ Dual Mode is a trademark of Maxim Integrated Products.
________________________________________________________________ Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.
1 page  
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 500mA Linear Regulators
_____________________________Typical Operating Characteristics (continued)
(VIN = 7V for MAX603, VIN = 5.3V for MAX604, OFF = VIN, SET = GND, CIN = COUT = 10µF, RL = 1kΩ, TJ = +25°C, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
OVERSHOOT AND TIME
EXITING SHUTDOWN MODE
B
5V
AA
MAX603
VOUT = 5V
2ms/div
A: OUTPUT VOLTAGE (100mV/div)
B: IOUT = 500mA (HIGH), IOUT = 5mA (LOW)
B
0V
500µs/div
A: OFF PIN VOLTAGE (1V/div)
RISE TIME = 13µs
B: MAX603 OUTPUT VOLTAGE (1V/div)
DELAY = 4.936ms, OVERSHOOT = 1%, RISE TIME = 55µs
______________________________________________________________Pin Description
PIN NAME
DESCRIPTION
1 IN Regulator Input. Supply voltage can range from 2.7V to 11.5V.
2, 3, 6, 7
GND
Ground. These pins function as heatsinks, only in the SOIC package. All GND pins must be soldered to the
circuit board for proper power dissipation. Connect to large copper pads or planes to channel heat from the IC.
4 OFF Shutdown, active low. Switch logic levels in less than 1µs with the high level above the OFF threshold.
5
SET
Feedback for Setting the Output Voltage. Connect to GND to set the output voltage to the preselected 3.3V
or 5V. Connect to an external resistor network for adjustable output operation.
8 OUT Regulator Output. Fixed or adjustable from 1.25V to 11.0V. Sources up to 500mA for input voltages above 4V.
1
IN
8
MAX603 OUT
2
MAX604
GND GND
7
VIN
3 GND
GND 6
CIN
10µF
4
OFF
SET 5
VOUT
R1
COUT
10µF
RL
R2
Figure 1. Test Circuit
_______________________________________________________________________________________ 5
5 Page 
5V/3.3V or Adjustable, Low-Dropout,
Low IQ, 500mA Linear Regulators
________________________________________________________Package Information
A A2
L A1
D1
D
e
B
E
E1
A3
0° - 15°
C
B1 eA
eB
P PACKAGE
PLASTIC
DUAL-IN-LINE
INCHES
DIM
MIN MAX
A – 0.200
A1 0.015
–
A2 0.125 0.175
A3 0.055 0.080
B 0.016 0.022
B1 0.045 0.065
C 0.008 0.012
D1 0.005 0.080
E 0.300 0.325
E1 0.240 0.310
e 0.100
–
eA 0.300
–
eB –
0.400
L 0.115 0.150
MILLIMETERS
MIN MAX
– 5.08
0.38
–
3.18 4.45
1.40 2.03
0.41 0.56
1.14 1.65
0.20 0.30
0.13 2.03
7.62 8.26
6.10 7.87
2.54
–
7.62
–
– 10.16
2.92 3.81
INCHES MILLIMETERS
DIM PINS
MIN MAX MIN MAX
D 8 0.348 0.390 8.84 9.91
D 14 0.735 0.765 18.67 19.43
D 16 0.745 0.765 18.92 19.43
D 18 0.885 0.915 22.48 23.24
D 20 1.015 1.045 25.78 26.54
D 24 1.14 1.265 28.96 32.13
D
A
0.101mm
0.005in.
e B A1
C
INCHES
DIM
MIN MAX
MILLIMETERS
MIN MAX
A 0.053 0.069 1.35 1.75
A1 0.004 0.010 0.10 0.25
0°-8°
B 0.014 0.019
C 0.007 0.010
0.35
0.19
0.49
0.25
E 0.150 0.157 3.80 4.00
e 0.050
1.27
H 0.228 0.244 5.80 6.20
L L 0.016 0.050 0.40 1.27
EH
S PACKAGE
SMALL
OUTLINE
INCHES MILLIMETERS
DIM PINS MIN MAX MIN MAX
D 8 0.189 0.197 4.80 5.00
D 14 0.337 0.344 8.55 8.75
D 16 0.386 0.394 9.80 10.00
21-0041A
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX604.PDF ] | |
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