MAX667 Datasheet, PDF (1/8 Pages) Maxim Integrated Products – +5V/Programmable Low-Dropout Voltage Regulator

19-3894; Rev 3; 10/94
+5V/Programmable Low-Dropout
Voltage Regulator
_______________General Description
The MAX667 low-dropout, positive, linear voltage regu-
lator supplies up to 250mA of output current. With no
load, it has a typical quiescent current of 20µA. At
200mA of output current, the input/output voltage differ-
ential is typically 150mV. Other features include a low-
voltage detector to indicate power failure, as well as
early-warning and low-dropout detectors to indicate an
imminent loss of output voltage regulation. A shutdown
control disables the output and puts the circuit into a
low quiescent-current mode.
The MAX667 employs Dual Mode™ operation. One
mode uses internally trimmed feedback resistors to pro-
duce +5V. In the other mode, the output may be varied
from +1.3V to +16V by connecting two external resistors.
The MAX667 is a pin-compatible upgrade to the
MAX666 in most applications where the input voltages
are above +3.5V. Choose the MAX667 when high out-
put currents and/or low dropout voltages are desired,
as well as for improved performance at higher
temperatures.
________________________Applications
Battery-Powered Devices
Pagers and Radio Control Receivers
Portable Instruments
Solar-Powered Instruments
____________________________Features
o 350mV Max Dropout at 200mA
o 250mA Output Current
o Normal Mode: 20µA Typ Quiescent Current
Shutdown Mode: 0.2µA Typ Quiescent Current
o Low-Battery Detector
o Fixed +5V (Min Component Count) or
Adjustable Output
o +3.5V to +16.5V Input
o Dropout Detector Output
o 10µF Output Capacitor
______________Ordering Information
PART
MAX667CPA
MAX667CSA
MAX667C/D
MAX667EPA
MAX667ESA
MAX667MJA
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
* Contact factory for dice specifications.
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice_*
8 Plastic DIP
8 SO
8 CERDIP
__________Typical Operating Circuit
+6.3V
BATTERY
IN
OUT
MAX667
+5V OUT
C1
10µF
SET GND SHDN
__________________Pin Configuration
TOP VIEW
DD 1
OUT 2
LBI ³
GND ⁴
MAX667
DIP/SO
8 _IN
7 LBO
6 SET
5 _SHDN
TM _{Dual Mode is a trademark of Maxim Integrated Products.}
________________________________________________________________ Maxim Integrated Products 1
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