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TS1909 Datasheet(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

Part # TS1909
Description  MicroPower VFM Boost DC to Dc Converter
PDF  6 Pages
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Manufacturer  TSC [Taiwan Semiconductor Company, Ltd]
Direct Link  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS1909 Datasheet(HTML) 2 Page - Taiwan Semiconductor Company, Ltd

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TS1909
MicroPower VFM Boost DC to Dc Converter
2/2
Version: A10
Electrical Specifications (Ta = 25oC, VIN=5V, EN=VIN, IL=0A unless otherwise noted)
Characteristics
Symbol
Conditions
Min
Typ
Max
Units
Output Voltage Accuracy
∆VOUT
-2.5
--
+2.5
%
Start-up Voltage (VIN-VF)
(Note 1)
VSTART-UP
IOUT=1mA, VIN=rising from 0 to 2V
--
0.8
1.2
V
Hold-on Voltage
VHOLD
IOUT=1mA, VIN=falling from 2 to 0V
0.6
--
--
V
Supply Current
ISUPPLY
No Load
--
22
--
uA
Internal Switch RDSON
RLX(DSON)
ILX=150mA
--
850
--
mΩ
Internal Leakage Current
ILX(Leak)
VLX=4V, Forced VOUT=3.8V
--
--
0.5
uA
Maximum Oscillator Frequency
FOSC
--
150
--
KHz
Oscillator Duty On
DON
To be measure on SW pin
--
77
--
%
VENH
Driver ON
0.75
--
--
V
Enable Input Threshold
VENL
Driver OFF
--
--
0.2
IENH
VEN=VIN
--
--
0.1
µA
Enable Input Current
IENL
VEN=0V
--
--
-0.1
VOUT=2.5V~3.0V, IOUT=50mA
--
82
--
%
VOUT=3.1V~4.0V, IOUT=50mA
--
83
--
%
Efficiency
η
VOUT=4.1V~5.0V, IOUT=50mA
--
87
--
%
Block Diagram



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