The PAM2305D is a step-down current-mode, DC-DC converter. At heavy load, the constant frequency PWM control per forms excellent stability and transient response.
Datasheets by Manufacturer
PAM2305 — Power Analog Micoelectronics — 1A Step-Down DC-DC Converters
PAM2301 — Power Analog Micoelectronics — 800mA Step-Down DC-DC Converters
PAM2306 — Power Analog Micoelectronics — Dual High-Efficiency PWM Step-Down DC-DC Coverter