ADVANCED INFORMATION
ADVANCED
INFORMATION
FEATURES
s
Low Dropout Voltage
s
Very Low Quiescent Current (50
碌
A maximum)
s
Internal Bandgap Reference
s
Regulates down to 1.8 V
s
Short Circuit Protection
s
Very Low Standby Current (1
碌
A maximum)
s
Miniature Package (SOT-23-5)
CMOS LDO REGULATOR WITH HIGH ACTIVE CONTROL
APPLICATIONS
s
Battery Powered Systems
s
Cellular Telephones
s
Pagers
s
Toys
s
Radio Control Systems
s
Low Voltage Systems
s
Personal Communications Systems
s
Portable Instrumentation
s
Portable Consumer Equipment
DESCRIPTION
The device is a low dropout linear regulation housed in a
small SOT-23-5 package, rated at 500 mW.
An internal P Channel pass transistor is used in order to
achieve low dropout voltage. The device has extremely
low quiescent current (max 50
碌A).
The device offers high
precision output voltage of 2% at over temperature. The
low quiescent current and dropout voltage make this part
ideal for battery powered applications. In the standby
mode when the device is disabled, the linear regulator only
draws 1
碌A
(max).
TKxxxxx
VIN
GND
CONTROL
VOUT
NC
BLOCK DIAGRAM
ORDERING INFORMATION
TK6xxxx S
VIN
VOUT
Tape/Reel Code
Package Code
Voltage Code
VOLTAGE CODE
18 = 1.8 V
20 = 2.0 V
25 = 2.5 V
28 = 2.8 V
30 = 3.0 V
35 = 3.5 V
40 = 4.0 V
45 = 4.5 V
50 = 5.0 V
55 = 5.5 V
60 = 6.0 V
CONTROL
CONTROL
CIRCUIT
CURRENT
LIMIT
+
-
-
+
TAPE/REEL CODE
TL: Tape Left
BANDGAP
REFERENCE
PACKAGE CODE
S: SOT-23-5
GND
February 1999 TOKO, Inc.
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