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參數(shù)資料
| 型號： | AN8018SA |
| 廠商： | PANASONIC CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.8-volt 2-channel step-up, step-down, or inverting DC-DC converter control IC |
| 中文描述： | 0.05 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.225 INCH, 0.65 MM PITCH, PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 6/26頁 |
| 文件大小： | 268K |
| 代理商： | AN8018SA |
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6
AN8018SA
Voltage Regulators
Pin No.
Equivalent circuit
Description
I/O
1
OSC:
The terminal used for connecting a timing capaci-
tor/resistor to set oscillation frequency.
Use a capacitance value within the range of 100 pF
to 10 000 pF and a resistance value within the range
of 3 k
to 30 k
. Use an oscillation frequency in the
range of 20 kHz to 1 MHz. When operating the
circuit in parallel and synchronously, the channel 2
output stops when this pin becomes 0.9 V or more.
(Refer to the "Application Notes, [7]" section.)
O
2
S.C.P.:
The terminal for connecting a capacitor to set the
time constant of the timer latch short-circuit pro-
tection circuit. Use a capacitance value in the range
of 1 000 pF or more. The charge current I
CHG
is
1.1
μ
A typical.
O
3
IN
+
1:
The noninverting input pin for error amplifier 1
block.
I
4
IN
1:
The inverting input pin for error amplifier 1 block.
I
5
FB1:
The output pin for error amplifier 1 block.
The source current is
47
μ
A and the sink current
is 47
μ
A.
Correct the frequency characteristics of the gain
and the phase by connecting a resistor and a capa-
citor between this terminal and GND.
O
I
Terminal Equivalent Circuits
Q
S
R
Latch
0.2 V
V
CC
1
Q
S
1.19 VR
1.1
μ
A
V
CC
2
2 k
Latch
Output
cut-off
V
CC
100
100
4
3
IN
+
1
5
IN
1
47
μ
A
OSC
PWM
47
μ
A
I
Electrical Characteristics at V
CC
=
2.4 V, C
REF
=
0.1
μ
F, T
a
=
25
°
C (continued)
Design reference data (continued)
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Output 2 block
RB terminal voltage
V
B
0.36
V
Short-circuit protection block
Comparator threshold voltage
V
THL
1.19
V
On/off control block
Off terminal current
I
OFF
23
μ
A
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