MAS9160(2000) Ver la hoja de datos (PDF) - Micro Analog Systems Oy
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MAS9160 Datasheet PDF : 8 Pages
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DA9160.000
26 October, 2000
MAS9160
This is preliminary information on a new
product under development. Micro Analog
Systems Oy reserves the right to make any
changes without notice.
2 Outputs LDO Voltage Regulator IC
• Dual Regulator: 2 x 150 mA
• Very Low Dropout: 70 mV
• High Ripple Rejection: 60 dB
• Low Noise: 30 µVrms
• Very Low Crosstalk
• Stable Even with Low-ESR Output
Capacitor: min. ESR 0.05 Ω
• Regulator Enable/Disable Control
DESCRIPTION
The MAS9160 is a voltage regulator IC with two low
dropout voltage regulators, which both have their
own enable/disable pin allowing the regulator to be
turned off or on by pulling the particular control to
low or high.
Due to the low noise level of only 30 µVrms,
MAS9160 is suitable for sensitive circuits, e.g., in
portable applications. In addition to the noise levels,
MAS9160 excels in dropout voltage (70 mV typical
at 50 mA) and rise time (16 µs typical without
bypass capacitor). Also its ripple rejection ability of
60 dB at 1 kHz exceeds that of competition.
A very wide range of values of Equivalent Series
Resistance (ESR) of output capacitors can be used
with MAS9160. This ESR range from a few mΩ up
to a couple of Ohms combined with no minimum
output current requirement makes the usage of
MAS9160 easier and low in cost.
In order to save power the device goes into sleep
mode when both regulators are disabled. An
internal thermal protection circuit prevents the
device from overheating. Also the maximum output
current is internally limited.
FEATURES
APPLICATION
• Output Accuracy <±2%
• Low Noise
• Internal Thermal Shutdown
• Short Circuit Protection
• MSOP-8 Package
• Functionally and Pin Compatible with LP2967
• Output Voltage Options: 3.3 V, 3.0 V, 2.8 V, and
2.5 V (Contact MAS Sales for 1.8 V, and 1.5 V
options)
PIN CONFIGURATION AND DESCRIPTION
• Cellular Phones
• Cordless Phones
• Pagers
• Battery Powered Systems
• Portable Systems
• Radio Control Systems
• Low Voltage Systems
Pin Name Pin Type Function
Top View
8 765
1 234
For Top Marking Information see
p. 8 Ordering Information
VIN
GND
CTRL1
CTRL2
BYPASS
VOUT1
VOUT2
1, 8
P
Power Supply Voltage for
both regulators.
4
G
Ground
6
I
Enable/Disable Pin for the
first regulator
3
I
Enable/Disable Pin for the
second regulator
5
I
Pin for Bypass
Capacitor
7
O
Output voltage of the first
Regulator.
2
O
Output voltage of the
Second regulator.
G = Ground, I = Input, O = Output, P = Power
Page 1 (8)
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