LM3674

V_IN Pin: Voltage to GND                      -0.2V to 6.0V
EN, FB, SW Pin:                                  (GND-0.2V) to
                                                              (V_IN+ 0.2V)
Continuous Power Dissipation    Internally Limited
Junction Temperature (T_J-MAX)                    +125
Storage Temperature Range          -65 to +150
Maximum Lead Temperature                         260
(Soldering, 10 sec.)
ESD Rating (Note 3)
Human Body model: All Pins                             2 kV
Machine Model: All Pins                                   200V

   The LM3674 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V. It provides up to 600mA load current, over the entire input voltage range. There are several fixed output voltages and adjustable out-put voltage versions.

   The device offers superior features and performance for mobile phones and similar portable systems. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typ). Internal synchronous rectification provides high effi-ciency during PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 A (typ).

   The LM3674 is available in SOT23-5 in leaded (PB) and lead-free (NO PB) versions. A high switching frequency of 2 MHz (typ) allows use of only three tiny external surface-mount components, an inductor and two ceramic capacitors.