st5r33 STMicroelectronics, st5r33 Datasheet - Page 5

• Manufacturer Part Number: st5r33
• Description: Micropower Vfm Step-up Dc/dc Converter
• Manufacturer: STMicroelectronics

Table 6: Electrical Characteristics For ST5R30
(V
otherwise notes, refer to the typical operating circuit.)
(1): The minimum input voltage for the IC start-up is strictly a function of the V
Table 7: Electrical Characteristics For ST5R33
(V
otherwise notes, refer to the typical operating circuit.)
(1): The minimum input voltage for the IC start-up is strictly a function of the V
Table 8: Electrical Characteristics For ST5R50
(V
otherwise notes, refer to the typical operating circuit.)
(1): The minimum input voltage for the IC start-up is strictly a function of the V
V
R
V
R
V
R
Symbol
Symbol
Symbol
I
I
I
I
I
I
START-UP
START-UP
START-UP
LX(DSON)
LX(DSON)
LX(DSON)
IN
V
IN
V
IN
V
SUPPLY
SUPPLY
SUPPLY
LX(leak)
LX(leak)
LX(leak)
V
V
V
f
f
f
HOLD
OSC
HOLD
OSC
HOLD
OSC
D
D
D
OUT
OUT
OUT
= 1.8V, I
= 2V, I
= 3V, I
ν
ν
ν
ty
ty
ty
Output Voltage
Start-up Voltage (V
Hold-on Voltage
Supply Current
Internal Switch R
Internal Leakage Current
Maximum oscillator Frequency
Oscillator Duty Cycle
Efficiency
Output Voltage
Start-up Voltage (V
Hold-on Voltage
Supply Current
Internal Switch R
Internal Leakage Current
Maximum oscillator Frequency
Oscillator Duty Cycle
Efficiency
Output Voltage
Start-up Voltage (V
Hold-on Voltage
Supply Current
Internal Switch R
Internal Leakage Current
Maximum oscillator Frequency
Oscillator Duty Cycle
Efficiency
OUT
OUT
OUT
= 10mA, T
= 10mA, T
= 10mA, T
Parameter
Parameter
Parameter
DSON
DSON
DSON
A
A
IN
IN
IN
A
= 25°C, unless otherwise specified. For external components value, unless
= 25°C, unless otherwise specified. For external components value, unless
-V
-V
-V
= 25°C, unless otherwise specified. For external components value, unless
F
F
F
) (1)
) (1)
) (1)
I
I
To be measured at V
I
V
to be measure on LX pin
I
I
I
To be measured at V
I
V
to be measure on LX pin
I
I
I
To be measured at V
I
V
to be measure on LX pin
I
OUT
OUT
LX
OUT
OUT
OUT
LX
OUT
OUT
OUT
LX
OUT
LX
LX
LX
= 150mA
= 150mA
= 150mA
= 4V, forced V
= 4V, forced V
= 4V, forced V
= 1mA, V
= 1mA, V
= 1mA, V
= 1mA, V
= 50mA
= 1mA, V
= 50mA
= 1mA, V
= 50mA
Test Conditions
Test Conditions
Test Conditions
IN
IN
IN
IN
IN
IN
= falling from 2 to 0V
= falling from 2 to 0V
= falling from 2 to 0V
= rising from 0 to 2V
= rising from 0 to 2V
= rising from 0 to 2V
OUT
OUT
OUT
IN
IN
IN
F
F
F
catch diode.
catch diode.
catch diode.
, no load
, no load
, no load
= 3.5V
= 3.8V
= 3.8V
3.135
Min.
Min.
Min.
2.85
4.75
0.6
0.6
0.6
Typ.
Typ.
Typ.
850
150
850
150
700
160
0.8
3.3
0.8
5.0
0.8
17
77
82
17
77
83
18
77
87
3
ST5R00 SERIES
3.465
Max.
Max.
Max.
3.15
5.25
1.2
0.5
1.2
0.5
1.2
0.5
Unit
Unit
Unit
KHz
KHz
KHz
mΩ
mΩ
mΩ
µA
µA
µA
µA
µA
µA
%
%
%
%
%
%
V
V
V
V
V
V
V
V
V
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