0
ACTIVE
Rating |
Catalog |
Topology |
Boost |
Vin (max) (V) |
14 |
Vin (min) (V) |
2.7 |
Vout (max) (V) |
22 |
Vout (min) (V) |
1.23 |
Switch current limit (typ) (A) |
1.5 |
Features |
Enable, Nonsynchronous rectification |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.002 |
Duty cycle (max) (%) |
93 |
SOT-23 (DBV)-5-8.12 mm² 2.9 x 2.8
The LM2731 switching regulators are current-mode boost converters operating at fixed frequencies of 1.6 MHz (X option) and 600 kHz (Y option).
The use of SOT-23 package, made possible by the minimal power loss of the internal 1.8-A switch, and use of small inductors and capacitors result in the highest power density of the industry. The 22-V internal switch makes these solutions perfect for boosting to voltages up to 20 V.
These parts have a logic-level shutdown pin that can 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.
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