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參數(shù)資料
| 型號： | TK65025MTL |
| 廠商： | TOKO INC |
| 元件分類： | 電源管理 |
| 英文描述： | STEP-UP VOLTAGE CONVERTER WITH VOLTAGE MONITOR |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | PLASTIC, SOT-23L, SMT-6 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大?。?/td> | 106K |
| 代理商： | TK65025MTL |
Page 2
February, 1997 Toko, Inc.
TK65025
ABSOLUTE MAXIMUM RATINGS
All pins except GND ................................................... 6 V
Power Dissipation (Note1) ................................. 400 mW
Storage Temperature Range ................... -55 to +150
°
C
SYMBOL
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
V
IN
I
B(Q)
I (V
IN
)
I (V
OUT
)
(OSC)
(OSC)/
T
V
OUT(REG)
V
OUT/
T
V
OUT(LOAD)
Load regulation of V
OUT(REG)
(Note 2) V
IN
= 1.3 V, I
O
= 0
→4
mA
V
OUT(LINE)
Line regulation of V
OUT(REG)
V
OUT(RST)
V
OUT
during reset transition
V
RST(HI)
Logic High of RESET w/r/t V
OUT
V
RST(LO)
Logic Low of RESET
V
OUT(RST)
V
OUT(RST)
threshold hysteresis
R
SW(ON)
On-resistance of switch, IND pin
D
(OSC)
On-time duty ratio of oscillator
η
Converter efficiency (Notes 4,5)
Supply Voltage Range (Note 2, 5)
0.90
1.60
V
No Load Battery Current (Note 5)
V
I
= 1.3 V, I
O
= 0 mA, T
A
= 25
°
C
V
IN
= 1.3 V I
O
= 1mA, T
A
= 25
°
C
V
OUT
= V
OUT (REG)
+20 mV, T
A
= 25
°
C
T
A
= 25
°
C
V
IN
= 1.3 V , I
O
= 1mA
T
A
= 25
°
C
80
120
μ
A
Quiescent current into V
IN
pin
Quiescent current into V
OUT
pin
Internal oscillator frequency
20
35
μ
A
22
34
μ
A
70
83
102
kHz
Temperature stability of oscillator
800
ppm/
°
C
Regulation threshold of V
OUT
Temperature
stability of V
OUT(REG)
V
IN
= 1.3 V, I
O
= 1mA
2.85
3.00
3.10
V
250
ppm/
°
C
0
mV
V
IN
= 0.25 V, I
O
= 1mA
V
IN
= 1.3 V, T
A
= 25
°
C
V
O
≥
2.6 V
V
O
≤
2.5 V
T
A
= 25
°
C
V
OUT
= V
OUT(REG),
T
A
= 25
°
C
-20
0
20
mV
2.48
2.70
V
-100
mV
100
mV
45
mV
1
ohm
36
50
64
%
V
I
= 1.3 V, I
O
= 4 mA
T
A
= 25
°
C I
O
= 1mA
74
%
V
UVL
I
O(MAX)
Undervoltage lockout threshold
0.74
V
Maximum I
O
for converter (Notes 3,5) V
I
≥
1.1 V, V
O
Regulated
4
mA
ELECTRICAL CHARACTERISTICS
Over operating temperature range and supply voltage range, unless otherwise specified.
TEST CIRCUIT
Note 1:
Derate at 0.8 mW/
o
C for operation above T
A
= 25
o
C ambient tempera-
ture, when heat conducting copper foil path is maximized on the printed circuit
board. When this is not possible, a derating factor of 1.6 mW/
°
C must be used.
Note 2:
Specifications are tested to 1.6 V. Device is suitable for dual cell
operation.
Note 3:
Maximum load current depends on inductor value. With a 0.9 V or 1.0
V supply voltage, 4 mA can be obtained with a smaller inductor value.
Note 4:
Output ripple depends on filter capacitor values, ESRs and the
connection of (V
OUT
) sense point.
Note 5:
When using specified TOKO inductor and Schottky diode with VF=0.45
V @ 100 mA. By trading component size for better specifications, using
Schottky diode with lower forward voltage, efficiency greater than 80% can be
attained.
Inductor L: Toko 682AE-014 or equivalent
Diode D: LL103A or equivalent
Capcitors C
N
: C
U
; C
D
: Panasonic TE series, ECS-T0JY106R
1
3
RESET
6
GND
4
VIN
VOUT
2
5
GND
IND
S
S
S
+
S
C
N
10
μ
F
300 k
RESET
15
10
μ
F
10
μ
F
S
S
220 pF
RS
S
D
VO
IO
1K
VI
IB
+
S
S
L
+
S
= 95
μ
H
CU
CD
RN
RR
CS
ROF
Operating Temp. Range............................-20 to + 80
°
C
Junction Temperature ...........................................150
°
C
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