PAM2305：降压转换器 _ BDTIC 中国领先电子元器件代理商

PAM2305：降压转换器

Part Number	Data Sheet	SPICE Model	Type	Efficiency (%)	RDS(ON) (mΩ)	Frequency Typ (kHz)	MinimumInput Voltage (V)	MaximumInput Voltage (V)	Output Current (A)	Output Voltage (V)	Standby Quiescent Current Typ (µA)
PAM2305	PAM2305.pdf	-	Buck	96	-	1500	2.5	5.5	1	1 1.2 1.5 1.8 2.5 2.8 3.3 ADJ(0.6 to VIN)	0.1

Description

The PAM2305 is a step-down current-mode, DC-DC converter. At heavy load, the constant frequency PWM control performs excellent stability and transient response. To ensure the longest battery life in portable applications, the PAM2305 provides a power-saving Pulse- Skipping Modulation (PSM) mode to reduce quiescent current under light load operation to save power. The PAM2305 supports a range of input voltages from 2.5V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/NiMH cell, USB, and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage, while the part number suffix PAM2305-XX indicates pre-set output voltage of 3.3V, 2.8V, 2.5V, 1.8V, 1.5V, 1.2V or adjustable. All versions employ internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 0.1μA. Other key features include under-voltage lockout to prevent deep battery discharge. The PAM2305 is available in TSOT25, DFN2x2-6 Pin and QFN3x3- 16 Pin packages.