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ELM604PA Datasheet(PDF) 3 Page - ELM Technology Corporation

Part # ELM604PA
Description  1.4MHz, 800mA dual PWM step-down converter
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Manufacturer  ELM-TECH [ELM Technology Corporation]
Direct Link  http://www.elm-tech.com
Logo ELM-TECH - ELM Technology Corporation

ELM604PA Datasheet(HTML) 3 Page - ELM Technology Corporation

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3
Rev.1.2
■Block diagram
+
_
+
_
Reference
EN1/
EN2
0.6V
FB1/FB2
Oscillator
Error
amplifier
Slope Comp
PWM
Comparator
Clock
PWM
Logic
Vin1/Vin2
M1
M2
SW1/SW2
GND1/GND2
Current
sense
amplifier
Zero-current
comparator
Shut down
control
■Electrical characteristics
Parameter
Symbol
Test condition
Min.
Typ.
Max. Unit
Supply voltage
Vin
2.5
6.0
V
Feedback current
Ifb
-30.0
0.5
30.0
nA
Regulated feedback voltage
Vfb
-40°C ≤ Top ≤ +85°C
0.582 0.600 0.618
V
Reference voltage line regulation
∆Vfb
Vin=2.5V to 6V
0.04
0.40
%/V
Output voltage line regulation
∆Vout
Vin=2.5V to 6V
0.04
0.40
%/V
Output voltage load regulation
Vlr
0.5
%
Shutdown current
Is
Ven=0V, Vin=6V
0.01
1.00
µA
Quiescent current
Iq
Ven=Vin, Vfb=0.65V
No switching
200
µA
SW leakage current
Ileak
Ven=0V, Vfb=0.65V
Vsw=0V or 6V
-1
1
µA
PMOSFET on resistance
RdsonP Isw=100mA
0.35
Ω
NMOSFET on resistance
RdsonN Isw=-100mA
0.24
Ω
PMOSFET current limit
IPcl
Duty cycle=100%
Current pulse width<1ms
0.8
1.1
1.5
A
Oscillator frequency
Fosc
1.12
1.40
1.68 MHz
Thermal shutdown threshold
Ts
145
°C
EN high level input voltage
Venh
-40°C ≤ Top ≤ +85°C
-1.1
V
EN low level input voltage
Venl
-40°C ≤ Top ≤ +85°C
0.3
V
EN input current
Ien
Ven=0V to Vin
-1
1
µA
Vin=3.6V, Typical values are at Top=25°C, unless otherwise noted.
7 -
ELM604PA 1.4MHz, 800mA dual PWM step-down converter


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