Product Details
| DESCRIPTION The LTC?3419 is a dual, 2.25MHz, constant-frequency, synchronous step-down DC/DC converter in a tiny 3mm × 3mm DFN package. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Low output voltages are supported with the 0.6V feedback reference voltage. Each regulator can supply 600mA output current. FEATURES ■ High Effi ciency Dual Step-Down Outputs: Up to 96% ■ 600mA Current per Channel at VIN = 3V ■ Only 35μA Quiescent Current During Operation (Both Channels) ■ 2.25MHz Constant-Frequency Operation ■ 2.5V to 5.5V Input Voltage Range ■ Low Dropout Operation: 100% Duty Cycle ■ No Schottky Diodes Required ■ Internally Compensated for All Ceramic Capacitors ■ Independent Internal Soft-Start for Each Channel ■ Available in Fixed Output Versions ■ Current Mode Operation for Excellent Line and Load Transient Response ■ 0.6V Reference Allows Low Output Voltages ■ User-Selectable Burst Mode? Operation ■ Short-Circuit Protected ■ Ultralow Shutdown Current: IQ < 1μA ■ Available in Small MSOP or 3mm × 3mm DFN-8 Packages APPLICATIONS ■ Cellular Telephones ■ Digital Still Cameras ■ Wireless and DSL Modems ■ Portable Media Players ■ PDAs/Palmtop PCs |
Product Description
| Type# | Description |
| ANSC PART# | ANSC- LTC3419EDD |
| Ihs Manufacturer | Original |
| Package Description | 3 X 3 MM, PLASTIC, MO-229WEED-1, DFN-8 |
| Analog IC - Other Type | DUAL SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Input Voltage-Max | 5.5 V |
| Input Voltage-Min | 2.5 V |
| Input Voltage-Nom | 3.6 V |
| Length | 3 mm |
| Moisture Sensitivity Level | 1 |
| Number of Functions | 1 |
| Number of Terminals | 8 |
| Operating Temperature-Max | 85 °C |
| Operating Temperature-Min | |
| Output Current-Max | 1.2 A |
| Package Body Material | PLASTIC/EPOXY |
| Package Code | HVSON |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Qualification Status | Not Qualified |
| Seated Height-Max | 0.8 mm |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2250 kHz |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL EXTENDED |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5 mm |
| Terminal Position | DUAL |
| Width | 3 mm |
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