Datasheet Analog Devices LT1611 — Datenblatt

LT1611
Inverting 1.4MHz Switching
Regulator in SOT-23
U DESCRIPTIO FEATURES The LT®1611 is the industry’s first inverting 5-lead SOT-23
current mode DC/DC converter. Intended for use in small,
low power applications, it operates from an input voltage
as low as 1.1V and switches at 1.4MHz, allowing the use
of tiny, low cost capacitors and inductors 2mm or less in
height. Its small size and high switching frequency enable
the complete DC/DC converter function to consume less
than 0.25 square inches of PC board area. Capable of
generating – 5V at 150mA from a 5V supply or – 5V at
100mA from a 3V supply, the LT1611 replaces nonregulated
“charge pump” solutions in many applications. Very Low Noise: 1mVP–P Output Ripple
– 5V at 150mA from a 5V Input
Better Regulation Than a Charge Pump
Effective Output Impedance: 0.14Ω
Uses Tiny Capacitors and Inductors
Internally Compensated
Fixed Frequency 1.4MHz Operation
Low Shutdown Current: …