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ST5R50U Datasheet(PDF) 5 Page - STMicroelectronics

Part # ST5R50U
Description  MICROPOWER VFM STEP-UP DC/DC CONVERTER
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST5R50U Datasheet(HTML) 5 Page - STMicroelectronics

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ST5R00 SERIES
5/15
Table 6: Electrical Characteristics For ST5R30
(VIN = 1.8V, IOUT = 10mA, TA = 25°C, unless otherwise specified. For external components value, unless
otherwise notes, refer to the typical operating circuit.)
(1): The minimum input voltage for the IC start-up is strictly a function of the VF catch diode.
Table 7: Electrical Characteristics For ST5R33
(VIN = 2V, IOUT = 10mA, TA = 25°C, unless otherwise specified. For external components value, unless
otherwise notes, refer to the typical operating circuit.)
(1): The minimum input voltage for the IC start-up is strictly a function of the VF catch diode.
Table 8: Electrical Characteristics For ST5R50
(VIN = 3V, IOUT = 10mA, TA = 25°C, unless otherwise specified. For external components value, unless
otherwise notes, refer to the typical operating circuit.)
(1): The minimum input voltage for the IC start-up is strictly a function of the VF catch diode.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
2.85
3
3.15
V
VSTART-UP Start-up Voltage (VIN-VF) (1)
IOUT = 1mA, VIN = rising from 0 to 2V
0.8
1.2
V
VHOLD
Hold-on Voltage
IOUT = 1mA, VIN = falling from 2 to 0V
0.6
V
ISUPPLY
Supply Current
To be measured at VIN, no load
17
µA
RLX(DSON) Internal Switch RDSON
ILX = 150mA
850
m
ILX(leak)
Internal Leakage Current
VLX = 4V, forced VOUT = 3.5V
0.5
µA
fOSC
Maximum oscillator Frequency
150
KHz
Dty
Oscillator Duty Cycle
to be measure on LX pin
77
%
ν
Efficiency
IOUT = 50mA
82
%
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
3.135
3.3
3.465
V
VSTART-UP Start-up Voltage (VIN-VF) (1)
IOUT = 1mA, VIN = rising from 0 to 2V
0.8
1.2
V
VHOLD
Hold-on Voltage
IOUT = 1mA, VIN = falling from 2 to 0V
0.6
V
ISUPPLY
Supply Current
To be measured at VIN, no load
17
µA
RLX(DSON) Internal Switch RDSON
ILX = 150mA
850
m
ILX(leak)
Internal Leakage Current
VLX = 4V, forced VOUT = 3.8V
0.5
µA
fOSC
Maximum oscillator Frequency
150
KHz
Dty
Oscillator Duty Cycle
to be measure on LX pin
77
%
ν
Efficiency
IOUT = 50mA
83
%
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VOUT
Output Voltage
4.75
5.0
5.25
V
VSTART-UP Start-up Voltage (VIN-VF) (1)
IOUT = 1mA, VIN = rising from 0 to 2V
0.8
1.2
V
VHOLD
Hold-on Voltage
IOUT = 1mA, VIN = falling from 2 to 0V
0.6
V
ISUPPLY
Supply Current
To be measured at VIN, no load
18
µA
RLX(DSON) Internal Switch RDSON
ILX = 150mA
700
m
ILX(leak)
Internal Leakage Current
VLX = 4V, forced VOUT = 3.8V
0.5
µA
fOSC
Maximum oscillator Frequency
160
KHz
Dty
Oscillator Duty Cycle
to be measure on LX pin
77
%
ν
Efficiency
IOUT = 50mA
87
%


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