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150KHZ PWM BUCK DC / DC CONVERTER 2A

FSP3125

150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
FEATURES
GENERAL DESCRIPTION
The FSP3125 series are monolithic IC designed for a
Typical Application
Simple High-efficiency step-down regulator On-card switching regulators Positive to negative converter
PIN ASSIGNMENT
(Top View)
VIN 1 OUTPUT 2 FB 3
FSP3125
GND GND
PIN DESCRIPTION
Name VIN OUTPUT FB SD GND GND GND GND No. 1 2 3 4 5 6 7 8 Description Operating Voltage Input Switching Output Output Voltage Feedback Control On / Off Shutdown Ground Ground Ground Ground
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
ABSOLUTE MAXIMUM RATINGS
Parameter Supply Voltage On / Off Pin Input Voltage Feedback Pin Voltage Output Voltage to Ground Power Dissipation Storage Temperature Operating Temperature Operating Voltage Value +24 -0.3 to +18 -0.3 to +18 -1 Internally Limited -65 to +150 -40 to +125 +4.5 to +22 Unit V V V V W V
ELECTRICAL CHARACTERISTICS
IL IQ ISTBY VIL VIH IL IH JC JA
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
ELECTRICAL CHARACTERISTICS(CONTINUED)
FUNCTIONAL BLOCK DIAGRAM
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
Function Description
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
Typical Application Circuit
(1) Fixed Output Version Circuit
(2) Adjustable Version Circuit
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
TYPICAL CHARACTERISTICS
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
TYPICAL CHARACTERISTICS(CONTINUED)
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
ORDER INFORMATION
FSP3125XXXX Package: S: SOP8L Temperature Grade: Output Voltage: Packing: Blank: Tube or Bulk E: -40~125 Blank: ADJ A: Tape & Reel 33: 3.3V 50: 5.0V 12: 12V
MARKING INFORMATION
3125-VV
YYWWXX
150KHZ PWM BUCK DC / DC CONVERTER 2A
FSP3125
PACKAGE INFORMATION
7(4) 0.01545 A
VIEW "A"
Min. 1.35 0.10 1.35 0.33 0.19 4.80 3.80
Dimensions In Millimeters Nom. Max. 1.60 1.75 0.25 1.45 1.55 0.41 0.51 0.20 0.25 4.90 5.00 3.90 4.00 1.27TYP. 5.80 5.99 6.30 0.38 0.71 1.27 0 8
Dimensions In Inches Min. Nom. 0.053 0.063 0.004 0.053 0.057 0.013 0.016 0.0075 0.008 0.192 0.196 0.148 0.154 0.050TYP. 0.228 0.236 0.015 0.028 0
Max. 0.069 0.010 0.061 0.020 0.010 0.200 0.160 0.248 0.050 8