P2583 Datasheet, PDF (1/6 Pages) Unisonic Technologies – 380KHz, 3A STEP-DOWN SWITCHING REGULATOR

UNISONIC TECHNOLOGIES CO., LTD
P2583
LINEAR INTEGRATED CIRCUIT
380KHz, 3A STEP-DOWN
SWITCHING REGULATOR
„ DESCRIPTION
The UTC P2583 is a fixed 380kHz frequency, current mode, PWM
controller with an internal power MOSFET. It achieves 3A continuous
output current over a wide input supply range with excellent load and line
regulation. Equipped with an external compensation pin, this device offers
user flexibility in determining loop dynamic.
The UTC P2583 integrates controls, monitoring and protection
functions into a single 8-pin package to provide a low cost and perfect
power solution. The device provides wide 3.6V to 28V operating input
range, also highly efficient with peak operating efficiency at 90%.
An Under- Voltage-Lock-Output (UVLO) circuit monitors the Vin supply
voltage to prevent wrong logic controls. An internal 1.222V reference
provides low output voltage down to 1.22V for further applications. The
controller’s over-current protection monitors the output current by using the
voltage drop across a current sensing resistor. Additional under voltage
protections monitor the voltage on FB pin for short-circuit protections.
The UTC P2583 provides fast transient respond and requires very few
external devices for operation.
„ FEATURES
* 3A Output Current
* V_in=3.6V,V_out=2.5V,I_{load_max} up to 3A
* 380kHz frequency of operation
* 3.6V to 28V Input Voltage Range
* 25μA Shutdown Supply Current
* Output Adjustable from 1.22V to 21V
* Frequency FoldBack at Short Circuit
* Thermal Shutdown
* Under Voltage Lock Output
* Current Mode with Low ESR Output Ceramic Capacitors
* Up to 90% Efficiency
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
P2583L-S08-R
P2583G-S08-R
P2583L-S08-T
P2583G-S08-T
Package
SOP-8
SOP-8
Packing
Tape Reel
Tube
P2583G-S08-R
(1)Packing Type
(2)Package Type
(3)Halogen Free
(1) R: Tape Reel, T: Tube
(2) S08: SOP-8
(3) G: Halogen Free, L: Lead Free
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