DA9162.003
13 March 2003
MAS9162
80 mA LDO Voltage Regulator IC
• Low Noise, 30 µVrms, without
External Bypass Capacitor
• Very Short Start-up Time: 10 µs
• Stable with Low-ESR Output
Capacitors
• Low Minimum Output Capacitance
Requirement: 0.25 µF
• Regulator Enable/Disable Control
DESCRIPTION
MAS9162 is a low dropout voltage regulator, which
achieves the low output noise level of 30 µVrms
without an external bypass capacitor. MAS9162
features very fast start-up time (typically only 10 µs
from start-up to within ±1% of VOUT(NOM)) and low
dropout voltage (80 mV typical at 50 mA).
The minimum output capacitance requirement is
very low. This with the very short start-up time
makes it possible to switch the regulator off and on
even in timing critical and/or noise sensitive
applications. In order to save power the device
enters the sleep mode when the regulator is
disabled.
The Equivalent Series Resistance (ESR) range of
output capacitors that can be used with MAS9162 is
very wide. This ESR range from a few mΩ up to a
couple of Ohms combined with no minimum output
current requirement makes the usage of MAS9162
easier and low in cost.
An internal thermal protection circuit prevents the
device from overheating. Also the maximum output
current is internally limited.
FEATURES
APPLICATION
• No External Bypass Capacitor Needed
• Optimized for Fast Start-up
• Internal Thermal Shutdown
• Short Circuit Protection
• SOT23-5 Package
• Pin Compatible with MC33761
• Several Output Voltage Options Available, see
Ordering Information p. 10
• RF-Oscillators
• Cellular Phones
• Cordless Phones
• Pagers
• Battery Powered Systems
• Portable Systems
• Radio Control Systems
PIN CONFIGURATION
Top View
VOUT
5
NC
4
62AX
123
VIN GND CTRL
For Top Marking Information
see Ordering Information p. 10
1 (10)