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| UM3500_16 Datasheet, PDF (3/11 Pages) Union Semiconductor, Inc. – 600mA, 1.5MHz, Synchronous Step-Down DC-DC Converter | |||
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UM3500
Electrical Characteristics (Note 2)
(VIN=VRUN=3.6V, TA=+25°C, unless otherwise noted)
Symbol
Parameter
Test Conditions
VIN
IQ
(Active)
IQ
(Shutdown)
VFB
IFB
IO(Max)
f
RDS(ON)
IP
ISWL
VH
VL
Input Voltage Range
Input DC Supply
Current
(Active Mode)
Input DC Supply
Current
(Shutdown Mode)
Regulated Feedback
Voltage
VFB Input Bias
Current
Reference Voltage Line
Regulation
Output Voltage Line
Regulation
Output Voltage Load
Regulation
Maximum Output
Current
Oscillator Frequency
RDS(ON) of P-CH
MOSFET
RDS(ON) of N-CH
MOSFET
Peak Inductor Current
SW Leakage
RUN High-Level
Threshold
RUN Low-Level
Threshold
VFB=3.6V,
VFB=VREF+5%
VFB=0V, VIN=4.2V
TA=+25ºC
0ºC â¤TAâ¤85ºC
-40ºC â¤TAâ¤85ºC
VFB=0.65V
2.5Vâ¤VINâ¤5.5V,
VOUT=VFB
(R2=0)
2.5Vâ¤VINâ¤5.5V,
IOUT=10mA
100mAâ¤IOUTâ¤600mA
VIN=3.6V,
VOUT=1.8V
VFB=0.6V or
VOUT=100%
VIN=3.6V,
ISW=100mA
VIN=3.6,
ISW=-100mA
VIN=3.0V,
VFB=0.5V or
VOUT=90%,
Duty Cycle<35%
VRUN=0V, VSW=0V
or 5V VIN=5V
-40ºCâ¤TAâ¤85ºC
-40ºCâ¤TAâ¤85ºC
IRUNL
η(MAX)
RUN Leakage Current
Max. Efficiency
Thermal Shutdown
Temp
VRUN=3.6V
VIN=2.7V,
VOUT=2.5V
Min
2.5
0.5880
0.5865
0.5850
600
1.2
1.0
90
Typ
50
0.08
0.6000
0.6000
0.6000
0.11
0.11
0.0015
1.5
0.40
0.35
1.20
±0.01
2.0
160
Max Unit
5.5
V
100
μA
1.0
μA
0.6120
0.6135
V
0.6150
±30
nA
0.40
%/V
0.40 %/V
%/mA
mA
1.8
MHz
0.50
Ω
0.45
Ω
A
±1
μA
V
0.4
V
3.5
μA
%
ºC
Note2: 100% production test at +25ºC. Specifications over the temperature range are guaranteed
by design and characterization.
________________________________________________________________________
http://www.union-ic.com Rev.04 May.2016
3/11
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