ELM600xB 1A 1.5MHz high efficiency synchronous PWM step down DC/DC converter
http://www.elm-tech.com
■Electrical characteristics
Vin=5V, Vout=1.8V, L=2.2µH, Cout=10µF, Top=25°C, unless otherwise specified
Parameter
Supply voltage
Output voltage line regulation
Output voltage load regulation
Reference voltage
Symbol
Vin
Test condition
Min.
2.5
-3
Typ.
Max. Unit
5.5
3
3
V
%/V
%
∆
∆
Vin=2.5V to 5.5V
Vout/ Vin
Vlr
-3
For adjustable Vout
Vin=2.5V to 5.5V
Ven=0V
0.588 0.600 0.612
-3
V
Vref
Vout
Is
Output range (adjustable voltage)
Shutdown current
+3
%
0.1
1.0
µA
Ven=Vin, Vfb=Vref×1.1
No switching
Quiescent current
Iq
110
µA
SW leakage current
PMOSFET on resistance
NMOSFET on resistance
Ileak
Ven=0V, Vsw=0V or Vin
-1
1
µA
mΩ
mΩ
RdsonP Isw=100mA
RdsonN Isw=-100mA
250
200
Duty cycle=100%
Current pulse width<1ms
PMOSFET current limit
IPcl
2
A
Oscillator frequency
Fosc
Ts
Venh
Venl
Ien
1.2
1.5
-1
1.5
160
1.8 MHz
Thermal shutdown threshold
EN high level input voltage
EN low level input voltage
EN input current
°C
V
-40°C ≤ Top ≤ +85°C
-40°C ≤ Top ≤ +85°C
Ven=0V to Vin
0.4
1
V
µA
■Marking
DFN6-2x2
Mark
Content
Assembly lot No. :
0 ~ 9 and A ~ Z
a ~ f
TSOT-25
Mark
a ~ e
Content
Assembly lot No. :
0 ~ 9 and A ~ Z
Rev.1.0
7 - 4
ELM-TECH [ ELM Technology Corporation ]
