TPS54262-Q1

illustrate

该TPS54262是一个降压开关模式与电压监控器和一个集成的NMOS场效应管开关电源。 The integrated input voltage feeder line topology improves transient regulation of voltage mode buck regulators. The regulator has a cycle-by-cycle current limit. 该器件还具有轻负载条件下将电源电流降低至50μA（典型值）低功率模式操作。 The EN pin is pulled low and the shutdown supply current is reduced to 1 microamp (typical).

The open-drain reset signal indicates that the output drops below the reset threshold set nominally by the external resistor divider network. The up-ramp output voltage start-up is made by a soft-start capacitor.

characteristic

• Asynchronous switch-mode regulator
• The operating voltage range of 3.6 V to 48 V can withstand transients up to 60 V
• 2，最大负载电流
• 50μA typical quiescent current
• 200 kHz to 2.2 MHz switching frequency
• is a 0.8 V ± 1.5% voltage reference
• Resistant to high voltage enable inputs
• Enabled on the soft boot cycle
• Internal power switch for slew rate control
• Low power mode in light load conditions
• Programmable delayed power-on reset
• External compensation error amplifier
• The reset function filters the time and the transient is negative
• Programmable overvoltage, undervoltage output monitors
• Thermal induction and shutdown
• Switch current limit protection
• FETs for short-circuit and overcurrent protection
• Junction temperature range: -40°C to 150°C
• The 20-pin HTSSOP is available in a PowerPAD™ package
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