0
ACTIVE
Rating |
Catalog |
Topology |
Boost |
Vin (max) (V) |
7 |
Vin (min) (V) |
2.2 |
Vout (max) (V) |
21 |
Vout (min) (V) |
1.24 |
Switch current limit (typ) (A) |
0.35 |
Features |
Enable, Nonsynchronous rectification |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.000235 |
Duty cycle (max) (%) |
76 |
SOT-23 (DBV)-5-8.12 mm² 2.9 x 2.8
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The LM2703 is a micropower step-up DC/DC in a small 5-lead SOT-23 package. A current limited, fixed off-time control scheme conserves operating current resulting in high efficiency over a wide range of load conditions. The 22V switch allows for output voltages as high as 21V. The low 400ns off-time permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications. The LM2703 is ideal for LCD panels requiring low current and high efficiency as well as white LED applications for cellular phone back-lighting. The LM2703 can drive up to 4 white LEDs from a single Li-Ion battery.
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