LM2753SDX

• Input voltage range: 3.0V to 5.5V
• Regulated output 5V
• 250mA output with 3.6V input current
• 400mA pulse output current (up to 500ms duration)
• 60μA (typical) quiescent current
• Regulations for PFM
• Inductor-free solution: only 3 small capacitors are required
• 10-pin LLP package (no pullback):
  It is 3mm x 3mm x 0.8mm

illustrate

The LM2753 is capable of driving LED Flash with a pulse current of 400mA at an input voltage of 3.6V. A switched capacitor multiplier, the LM2753 provides a regulated supply with an input supply voltage range of 3.0V to 5.5V and 5V_output（V OUT） 。 Switch output, me_{go out}It takes less than 10ns to turn on and provides the maximum current of one flash LED. Flash LED current passes through ballast resistance. Continuous illumination (flashlight mode) between my resistance connection, programming_andV OUT。 This device uses only three small, low-cost ceramic capacitors.

LM2753 adopts the Pulse Frequency Modulation (PFM) regulation. The typical operating frequency is 725kHz. At no load, the LM2753 is only 60μA. If the output is connected to ground, the charge pump is kept at a gain of 1, which helps limit the input current (300mA typical)

The LM2753 is a 10-pin lead-free leadframe package without pullback: LLP-10.

apply

• Phone camera flash
• Universal regulated output, high current power supply