The LM27313/-Q1 switching regulator is a current-mode boost converter with a fixed operating frequency of 1.6 MHz.
The use of the SOT-23 package, made possible by the minimal losses of the 800-mA switch, and the small inductors and capacitors result in extremely high power density. The 30-V internal switch makes these solutions perfect for boosting to voltages of 5 V to 28 V.
This device has a logic-level shutdown pin that can be used to reduce quiescent current and extend battery life.
Protection is provided through cycle-by-cycle current limiting and thermal shutdown. Internal compensation simplifies design and reduces component count.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
LM27313 | SOT-23 (5) | 2.90 mm x 1.60 mm |
LM27313-Q1 |
Changes from D Revision (April 2013) to E Revision
Changes from C Revision (April 2013) to D Revision
PIN | I/O(1) | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | SW | O | Drain of the internal FET switch. |
2 | GND | G | Analog and power ground. |
3 | FB | I | Feedback point that connects to external resistive divider to set VOUT. |
4 | SHDN | I | Shutdown control input. Connect to VIN if this feature is not used. |
5 | VIN | I/P | Analog and power input. |