TC1017 Datasheet, PDF (1/22 Pages) Microchip Technology – 150 mA, Tiny CMOS LDO With Shutdown

M
TC1017
150 mA, Tiny CMOS LDO With Shutdown
Features
• Space-saving 5-Pin SC-70 and SOT-23
Packages
• Extremely Low Operating Current for Longer
Battery Life: 53 µA (typ.)
• Very Low Dropout Voltage
• Rated 150 mA Output Current
• Requires Only 1 µF Ceramic Output Capacitance
• High Output Voltage Accuracy: ±0.5% (typ.)
• 10 µsec (typ.) Wake-Up Time from SHDN
• Power-Saving Shutdown Mode: 0.05 µA (typ.)
• Overcurrent and Overtemperature Protection
• Pin Compatible Upgrade for Bipolar Regulators
Applications
• Cellular/GSM/PHS Phones
• Battery Operated Systems
• Portable Computers
• Medical Instruments
• Electronic Games
• Pagers
General Description
The TC1017 is a high-accuracy (typically ±0.5%)
CMOS upgrade for bipolar low dropout regulators. It is
offered in a SC-70 or SOT-23 package. The SC-70
package represents a 50% reduced footprint versus
the popular SOT-23 package.
Developed specifically for battery-powered systems,
the TC1017’s CMOS construction consumes only
53 µA typical supply current over the entire 150 mA
operating load range. This can be as much as 60 times
less than the quiescent operating current consumed by
bipolar LDOs.
With small-space requirements and cost in mind, the
TC1017 was developed to be stable over the entire
input voltage and output current operating range using
low value (1 µF ceramic), low equivalent series
resistance output capacitors. Additional integrated
features, such as shutdown, overcurrent and
overtemperature protection, further reduce the board
space and cost of the entire voltage regulating
application.
Key performance parameters for the TC1017 are low
dropout voltage (285 mV typical at 150 mA output
current), low supply current while shutdown (0.05 µA
typical) and fast stable response to sudden input
voltage and load changes.
Package Types
SC-70
V_IN
V_OUT
5
4
TC1017
SOT-23
12 3
SHDN NC GND
V_OUT
NC
5
4
TC1017
1
2
3
V_IN GND SHDN
 2003 Microchip Technology Inc.
DS21813B-page 1