MAX667_08 Datasheet, PDF (1/9 Pages) Maxim Integrated Products – +5V/Programmable Low-Dropout Voltage Regulator

19-3894; Rev 4; 9/08
+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
__________Typical Operating Circuit
____________________________Features
♦ 350mV Max Dropout at 200mA
♦ 250mA Output Current
♦ Normal Mode: 20µA Typ Quiescent Current
Shutdown Mode: 0.2µA Typ Quiescent Current
♦ Low-Battery Detector
♦ Fixed +5V (Min Component Count) or
Adjustable Output
♦ +3.5V to +16.5V Input
♦ Dropout Detector Output
♦ 10µF Output Capacitor
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX667CPA
0°C to +70°C
8 Plastic DIP
MAX667CSA
0°C to +70°C
8 SO
MAX667C/D
0°C to +70°C
Dice*
MAX667EPA
-40°C to +85°C
8 Plastic DIP
MAX667ESA
-40°C to +85°C
8 SO
MAX667MJA
-55°C to +125°C 8 CERDIP**
MAX667MSA/PR
-55°C to +125°C 8 SO†
MAX667MSA/PR-T -55°C to +125°C 8 SO†
*Contact factory for dice specifications.
**Contact factory for availability and processing to MIL-STD-883.
†Contact factory for availability.
__________________Pin Configuration
+6.3V
BATTERY
IN
OUT
MAX667
+5V OUT
C1
10μF
SET GND SHDN
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
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.