Data Sheet

Datasheet
5A 350KHz 25V Buck DC to DC Converter
5
GS2678 Electrical Characteristics
T
a
= 25℃;unless otherwise specified.
Symbol Parameter Test Condition Min. Typ. Max. Unit
System parameters test circuit figure4
VFB
Feedback
Voltage
Vin = 5V to 25V, Vout=5V
Iload=0.5A to 5A
0.776 0.8 0.824 V
Efficiency
ŋ
Vin=12V ,Vout=5V
Iout=5A
- 90 - %
Electrical Characteristics (DC Parameters)
Vin = 12V, GND=0V, Vin & GND parallel connect a 220uf/50V capacitor; Iout=500mA, T
a
=
25℃; the others floating unless otherwise specified.
Parameters Symbol Test Condition Min. Typ. Max. Unit
Input operation voltage Vin 3.6 25 V
Shutdown Supply Current I
STBY
V
EN
=0V 60 200 uA
Quiescent Supply Current I
q
V
EN
=2V,
V
FB
=Vin
3 5 mA
Oscillator Frequency Fosc 298 350 402 Khz
Switch Current Limit I
L
V
FB
=0 8 A
EN Pin Threshold V
EN
High (Regulator ON)
Low (Regulator OFF)
1.4
0.8
V
I
H
V
EN
=2V (ON) 1 15 uA
EN Pin Input Leakage
Current
I
L
V
EN
=0V (OFF) 1 15 uA
Max. Duty Cycle D
MAX
V
FB
=0V 100 %
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