TC59_13 Datasheet, PDF (1/20 Pages) Microchip Technology – Low Dropout, Negative Output Voltage Regulator

TC59
Low Dropout, Negative Output Voltage Regulator
Features
• Low Dropout Voltage
- Typically 120mV @ 50mA; 380mV @ 100mA
for -5.0V Output Part
• Tight Output Voltage Tolerance: ±2% Max
• Low Supply Current: 3.5A, Typ
• Small Package: 3-Pin SOT-23A
Applications
• Cellular Phones
• Battery Operated Systems
• Palmtops
• Portable Cameras
Device Selection Table
Part Number
Output
Voltage
Package
Temperature
Range
TC593002ECB 3.0V 3-Pin SOT-23A -40°C to +85°C
TC595002ECB 5.0V 3-Pin SOT-23A -40°C to +85°C
Other output voltages are available. Please contact Microchip
Technology Inc. for details.
Package Type
3-Pin SOT-23A
V_SS
4
General Description
The TC59 is a low dropout, negative output voltage
regulator designed specifically for battery-operated
systems. Its full CMOS construction eliminates the
wasted ground current typical of bipolar LDOs. This
reduced supply current significantly extends battery
life, particularly when the TC59 is operated in dropout.
Other TC59 key features include low supply current
(typically 3.0A) and low dropout operation (typically
120mV at 50mA). The TC59 is packaged in a small
3-Pin SOT-23A package.
Functional Block Diagram
3
V_SS
TC59
-V_OUT
1
-V_IN
2
-V_OUT
_
1µF
+
_
-V_IN
1µF
+
TC59
1
2
-V_OUT
-V_IN
NOTE: 3-Pin SOT-23A is equivalent to the EIAJ SC59
 2001-2012 Microchip Technology Inc.
DS21438C-page 1