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TK65020 Datasheet(PDF) 3 Page - TOKO, Inc

Part # TK65020
Description  STEP-UP VOLTAGE CONVERTER
Download  14 Pages
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Manufacturer  TOKO [TOKO, Inc]
Direct Link  http://www.toko.com
Logo TOKO - TOKO, Inc

TK65020 Datasheet(HTML) 3 Page - TOKO, Inc

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ADVANCED INFORMATION
January 1999 TOKO, Inc.
Page 3
TK65020
BENCH TEST CIRCUIT
Above is the Final Test Circuit through which each of the production parts must pass. In this test circuit, the part is tested
against the specification limits in the data sheet (the min. and max. values in the Electrical Characteristics) at room
temperature, and is rejected if the tested values are outside the minimum (min.) and maximum (max.) values.
FINAL TEST CIRCUIT
VIN
GND
GND
NC
VOUT
SW
IB
L = 95 µF
D
IOUT
VOUT
RS
1 K
VIN
CN
10 µF
CD
10 µF
CS
220 pF
ROF
15
++
CU
10 µF
Inductor L: Toko A682AE-014 or equivalent
Diode D: LL101
Capacitors C
N:CU:CD: Panasonic TE series,
ECS-TOJY106R
VIN
GND
GND
NC
VOUT
IND
IB
L = 95 µH
D
IOUT
VOUT
RN
1 K
RS
1 K
VIN
CN
10 µF
CO
10 µF
I(VIN)
CS
220 pF
I(VOUT)
CB
10 µF
Inductor L: Toko A682AE-014 or equivalent
Diode D: LL103A or equivalent
Capacitors C
N:CO:CB: Panasonic TE series,
ECS-TOJY106R
Note 2:
Maximum load current depends on
inductor value and input voltages.
Note 3:
Output ripple depends on filter
capacitor values, ESRs and the
inductor value.
Note 4:
When using specified Toko inductor
and Schottky diode with V
F = 0.45 V
@ 100 mA.
Note 5: Regulation not guaranteed
The Bench Test Circuit is used most of the time to measure the typical (typ.) values in the Electrical Characteristics
section, and make the Typical Performance graphs.
Note: In measuring the oscillator frequency and the Max I
OUT on the bench, the converter was loaded until “no pulse
skipping” mode was achieved.


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