α
FEATURES
ALPHA
SEMICONDUCTOR
Excellence in Analog Power Products
AS116
Low Dropout Voltage Three Terminal Regulator
APPLICATIONS
•
5.0V, 4.5V, 4.2V, 4.0V, 3.5V, 3.3V, 3.0V Versions Available
•
Very Low Dropout Voltage
•
Output Current In Excess Of 100mA
•
Low Standby Current (ON, No Load)
•
Short Circuit Protection
•
Internal Thermal Shutdown
•
Available in TO-92, SO-8 & SO-89 Packages
•
Direct Replacement Pin to Pin to TK116
•
Battery Powered Systems
•
Cordless Telephones
•
Radio Control Systems
•
Portable/ Palm Top / Notebook Computers
•
Portable Consumer Equipment
•
Portable Instrumentation
•
Pager
•
Low Voltage Systems
•
Cellular Phone
PRODUCT DESCRIPTION
The ALPHA Semiconductor’s AS116 is a low power voltage regulators. This devices are an excellent choice for use in battery-
powered applications such as cordless telephones, radio control systems, and pagers. The AS116 features very low quiescent current
in ON (400µA no load and 2mA at 60mA load) and OFF mode and very low dropout voltage of less than 200mV at 80mA load
through internal PNP pass-transistor. The junction temperature of 150°C is achieved through an internal thermal shutdown. In case
of short circuit, the AS116 will shut down.
This device is available in many different output voltages between 2.0V to 5.5V. This regulator is available in TO-92, SO-8 and
SOT-89 packages, it can also be supplied in tape and reel. The AS116 is a direct replacement to TK116.
ORDERING INFORMATION
TO-92
AS116N-XX
SO-8
AS116S-XX
SOT-89
3-PIN
AS116M1-XX
Oper. Temp.
Range
IND.
PIN CONNECTIONS
SOT-89 (M1)
TO-92 (N)
1
2
3
8-Pin Surface Mount, Fix Output
OUTPUT
GND
GND
1
2
3
4
8
INPUT
GND
GND
NC
ALPHA
AS116
1
2
INPUT GND
3
OUTPUT
V
OUT
GND
V
IN
ALPHA
AS116
AS2930
7
6
5
NC
Front View
Bottom View
Top View
ALPHA SEMICONDUCTOR INC. 1031 SERPENTINE LANE. PLEASANTON, CA 94566 TEL: (925) 417-1391 FAX: (925) 417-1390
REV.11/16/98
AS116
ABSOLUTE MAXIMUM RATINGS
Power Dissipation......................................................500 mW
Lead Temp. (Soldering, 5 Seconds) .............................. 240°C
Storage Temperature Range .......................... -65° to +150°C
Operating Junction Temperature Range
AS116 ................................................................+150°C
Input Supply Voltage........................................-20 to +60V
Feedback Input Voltage ...................................-1.5 to +30V
Shutdown Input Voltage ..................................-0.3 to +30V
Output Voltage ...........................................V
OUT
X1.15 V
Load Current .......................................................... 180 mA
ELECTRICAL CHARACTERISTICS
at Ta=25°C, unless otherwise specified.
Parameter
Supply Voltage Range
Supply Current
Supply Current
Regulated Output Voltage
Dropout voltage
Dropout Voltage
Output Current
Line Regulation
Load Regulation
Ripple Rejection
Output Voltage Temperature
Coefficient
Output Noise Voltage
Symbol
V
IN
I
IN1
I
IN2
V
OUT
V
DROP1
V
DROP2
I
OUT
LI
REG
LD
REG
V
RIPPLE
∆V
OUT/
∆T
A
V
N
Test Conditions
I
OUT
=0mA, V
CONT
=0, ON Mode
V
CONT
=V
IN
, OFF Mode
V
IN
=V
OUT
+1 V, I
OUT
=10mA
I
OUT
=10mA
I
OUT
=60mA
Min
2.5
Typ
400
800
Max
14
Units
V
µA
µA
-3.0
V
OUT
50
170
+3.0
%
mV
mV
mA
100
V
OUT
+1.0V to
≤V
IN
≤V
OUT
+6.0V
10 mA≤I
OUT
≤60mA,
V
IN
=V
OUT
+1.5
100mV
RMS
, f=400Hz
V
IN
=V
OUT
+1.5v, I
OUT
=10mA
0°C≤T
A
≤75°C
V
IN
=V
OUT
+1.5V, I
OUT
=10mA
V
IN
=V
OUT
+1.5V, I
OUT
=10mA
10Hz<f<100kHz, I
OUT
=10mA
0.01
0.02
55
±0.2
150
%/V
%/mA
dB
mV/°C
µV
RMS
TEST CIRCUIT
V
IN
4.5V
AS116
+
V
OUT
4.7uF
ALPHA SEMICONDUCTOR INC. 1031 SERPENTINE LANE. PLEASANTON, CA 94566 TEL: (925) 417-1391 FAX: (925) 417-1390
REV.11/16/98
Analogue and Mixed Signal
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