ELM630BA Datasheet, PDF (4/7 Pages) ELM Technology Corporation – 1.5A 5.5V 2.5MHz Synchronous step down DC/DC converter

ELM630BA 1.5A 5.5V 2.5MHz Synchronous step down DC/DC converter
■Electrical characteristics(Adjustable output voltage)
http://www.elm-tech.com
Vin=5.0V, Cin=10µF, Cout=10µF, L=1.2µH, typical Top=25°C, Tj(max.)=125°C, unless otherwise noted.
Parameter
Symbol
Test condition
Min. Typ. Max. Unit
Supply voltage
Vin
2.9
5.5 V
Output voltage
Vout ^Adjustable
1
5V
Output current
Iout
1.5 A
Output voltage tolerance (Note1) ∆Vout Vin=3.6V to 5.0V, no load
-2.5
+2.5 %
Feedback voltage
Vfb ^Ta=+25°C
0.98 1.00 1.02 V
Current limit
Ilimit ^{Peak inductor current}
2.0
A
Under-voltage lockout
Rising Vin
UVLO _Hysteresis
2.20 2.35 2.50 V
250
mV
Quiescent current
Iq ^{Ven=Vin, no switching}
300
µA
Shutdown current
Is Ven=GND
1
10 µA
PMOSFET on resistance
Rdson_P ^Isw=100mA
150
mΩ
NMOSFET on resistance
Rdson_N ^Isw=-100mA
125
mΩ
SW leakage current
Ileak
Vin=5.5V, Vsw=0V, Ven=GND
Vin=5.5V, Vsw=5.0V, Ven=GND -10
1
-1
10 _µA
Line regulation
∆Vline-reg Vin=3.6V to 5.0V, Iout=0A
±1.0
%
Load regulation (Note2)
∆Vload-reg Vin=5.0V, Iout=10mA to 1.5A
±1.0
%
Oscillator frequency
Fosc
2.0 2.5 3.0 MHz
Soft-Start time (Note2)
Tss
100
µs
EN input high current
Ien_Hi Ven=Vin
-2.0
2.0 µA
EN input low current
Ien_Lo Ven=GND
-2.0
2.0 µA
EN input high threshold
Ven_Hi
1.2
V
EN input low threshold
Ven_Lo
0.4 V
FB over voltage protection(note2) _Vovp
115
%
Thermal shutdown temperature
(Note2)
Tsd ^{Junction temperature}
+160
°C
Thermal shutdown hysteresis
(Note2)
Tsd_hys ^{Junction temperature}
10
°C
Note 1: The “ Output voltage tolerance ” includes output voltage accuracy, voltage drift over temperature and
the line regulation.
Note 2: Guaranteed by design, not tested.
Rev.1.0
7- 4