Datasheet Texas Instruments LM2757TMX/NOPB — 数据表

Sample &
Buy Product
Folder Support &
Community Tools &
Software Technical
Documents LM2757
SNVS536F – OCTOBER 2007 – REVISED JULY 2015 LM2757 Switched-Capacitor Boost Regulator With High Impedance Output in Shutdown
1 Features 3 Description The LM2757 is a constant-frequency pre-regulated
switched-capacitor charge pump that operates at
1.25 MHz to produce a low-noise regulated output
voltage. The device can be configured to provide up
to 100 mA at 4.1 V, 110 mA at 4.5 V, or 180 mA at 5
V. Excellent efficiency is achieved without the use of
an inductor by operating the charge pump in a gain of
either 3/2 or 2 according to the input voltage and
output voltage option selection. 1 Dual Gain Converter (2Г—, 3/2Г—) With up to 93%
Efficiency
Inductorless Solution Uses Only 4 Small Ceramic
Capacitors
Total Solution Area < 12 mm2
True Input-Output and Output-Input Disconnect
Up to 180-mA Output Current Capability (5 V)
Selectable 4.1-V, 4.5-V or 5-V Output …