MAS9128A Datasheet, PDF (1/8 Pages) Micronas – LDO Voltage Regulator IC

DA9128A.002
July 12, 1998
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The MAS9128A is voltage regulator IC with three
2.85V LDO regulators providing voltage regulation
for the handset terminal. The output voltages of the
three regulators can be modified through a mask
option. Two enable/disable pins control the state of
the regulators. In order to save power the device
goes into sleep mode when all regulators are
disabled. An internal thermal protection circuit
prevents the device from overheating. The
maximum output current is limited internally.
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• 2.85V regulators at 100mA, 70mA and 50mA
• Output accuracy <±3%
• Fast dynamic response
• Low output noise
• Low supply current: 150µA per regulator
• SO8 package
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• Mobile phones
• Cordless phones
• Battery powered systems
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ENA
&
LDO_A
(100mA)
OUTA
ENBC
Temperature
Protection
&
&
LDO_B
(70mA)
&
LDO_C
(50mA)
OUTB
OUTC
Bandgap
Reference
VREF
VCC GND
1