PAM2322AGEAR Datasheet | Diodes Incorporated

Description The PAM2322AGEAR is a dual step-down current-mode, DC-DC converter. At heavy load, the constant-frequency PWM control performs with excellent stability and transient response. To ensure the longest battery life in portable applications, the PAM2322AGEAR provides a power-saving Pulse-Skipping Modulation (PSM) mode to reduce quiescent current under light load operation Pin Assignments The PAM2322AGEAR supports a range of input voltages from 2.7V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/Ni MH cell, USB, and other standard power sources. Output 1 is a 1.8V fixed output. Output 2 is adjustable from 0.9V to VIN. Both outputs employ an internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. Output 1 delivers up to 1000m A output current while output 2 delivers up to 2000m A. Each regulator has an independent enable pin. Each output of the PAM2322AGEAR can be disabled when a logic low is applied to the channel enable pin. During shutdown, the input is disconnected from the output and the shutdown current is less than 0.1μA W-FLGA2520-17 Other key features include under-voltage lockout, soft-start, hiccup mode short circuit protection and thermal shutdown. Features - Supply Voltage:2.7V to 5.5V - Output Current: OUT1: 1000m A/Buck, 1.8V Fixed Output OUT2: 2000m A/Buck - Switching Frequency:1.2MHz - Internal Synchronous Rectifier - Fast Transient Response - Fast Turn On and Turn Off - Internal Soft Start - Internal pensation - 100% Duty Cycle Operation - Power Good Indicator for OUT1 - Under-Voltage Lockout - Hiccup Mode Short Circuit Protection - Thermal Shutdown - Small W-FLGA2520-17 Package - Totally Lead-Free & Fully Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) Applications - Portable Electronics - Personal Information Appliances - Wireless and DSL Modems Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (Ro HS) &...