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TPS62003QDGSRQ1 Datasheet(PDF) 2 Page - Texas Instruments |
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TPS62003QDGSRQ1 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 26 page TPS62000Q1, TPS62001Q1, TPS62002Q1, TPS62003Q1 TPS62004Q1, TPS62005Q1, TPS62006Q1, TPS62007Q1, TPS62008Q1 HIGHEFFICIENCY STEPDOWN LOW POWER DCDC CONVERTER SGLS243A − APRIL 2004 − REVISED JUNE 2008 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description (continued) The TPS6200x is a synchronous current-mode PWM converter with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve the highest efficiency over a wide load current range, the converter enters a power-saving pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 750 kHz, allowing the use of small inductor and capacitor values. The device can be synchronized to an external clock signal in the range of 500 kHz to 1 MHz. For low-noise operation, the converter can be operated in the PWM mode and the internal antiringing switch reduces noise and EMI. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6200x is available in the 10-pin (DGS) microsmall outline package (MSOP). The devices operate over a junction temperature range of −40 °C to 125°C. 0 10 20 30 40 50 60 70 80 90 100 0.1 1 10 100 1000 EFFICIENCY vs LOAD CURRENT IO − Load Current − mA VI = 3.6 V, VO = 2.5 V Figure 1 VIN 1 8 6 7 32 9 5 10 4 10 µH EN ILIM SYNC GND FC PG PGND FB L TPS6200x † 10 µF VO = 0.8 V to VI PG 0.1 µF 10 µF VI = 2 V to 5.5 V † With VO ≥1.8 V; Co = 10 µF, VO <1.8 V; Co = 47 µF Figure 2. Typical Application Circuit for Fixed Output Voltage Option SYNC = Low SYNC = High 1 2 3 4 5 10 9 8 7 6 MSOP (DGS) PACKAGE (TOP VIEW) VIN FC GND PG FB PGND L EN SYNC ILIM |
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