Microchip Technology MIC2172
1.25A Switching Regulators
| Part No. | MIC2172 |
|---|---|
| Datasheet | MIC2172 Download |
| Manufacturer |  Microchip Technology |
| Description | 1.25A Switching Regulators |
| Buy | Stock & Price |
FEATURES
● 1.25A, 65V Internal Switch Rating● 3V to 40V Input Voltage Range
● Current Mode Operation
● Internal Cycle-by-Cycle Current Limit
● Low External Parts Count
● Operates in Most Switching Topologies
● 7 mA Quiescent Current (Operating)
● <1 μA Quiescent Current, Shutdown Mode (MIC3172)
● TTL Shutdown Compatibility (MIC3172)
● External Frequency Synchronization (MIC2172)
● External Frequency Trim (MIC2172)
● Fits Most LT1172 Sockets (see Section 5.0,
APPLICATIONS
Information)APPLICATIONS
● Laptop/Palmtop Computers● Toys
● Handheld Instruments
● Off-Line Converter up to 50W (Requires External Power Switch)
● Predriver for Higher Power Capability
● Master/Slave Configurations (MIC2172)
GENERAL DESCRIPTION
The MIC2172 and MIC3172 are complete 100 kHz SMPS current mode controllers with internal 65V 1.25A power switches. The MIC2172 features external frequency synchronization or frequency adjustment, while the MIC3172 features an enable/shutdown control input. Although primarily...
