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參數(shù)資料
| 型號(hào)： | ADM8828ART |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Switched-Capacitor Voltage Inverter with Shutdown |
| 中文描述： | SWITCHED CAPACITOR CONVERTER, 190 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 67K |
| 代理商： | ADM8828ART |
–2–
REV. A
ADM8828/ADM8829–SPECIFICATIONS
(V
IN
= +5 V, C1, C2 = 1
m
F,
1
T
A
= T
MIN
to T
MAX
unless other-
wise noted)
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
Input Voltage, IN
1.5
5.5
V
R
L
= 10 k
Supply Current
600
1000
μ
A
Unloaded
Output Current
Output Resistance
Output Ripple
25
mA
mV p-p
mV p-p
18
25
130
28
I
L
= 5 mA
I
L
= 5 mA
I
L
= 25 mA
Charge-Pump Frequency
50
65
120
190
kHz
kHz
V
IN
= +2.25 V
R
L
= 200
R
L
= 1 k
No Load
R
L
= 1 k
R
L
= 200
Power Efficiency
90
87
99.96
98
91
%
%
%
%
%
Voltage Conversion Efficiency
99.5
Shutdown Supply Current, I
SHDN
Shutdown Input Voltage, V
SHDN
0.02
2
μ
A
V
V
μ
s
SHDN = IN
SHDN High = Disabled
SHDN Low = Enabled
I
L
= 5 mA
2.0
0.8
Shutdown Exit Time
175
NOTES
1
C1 and C2 are low ESR (<0.2
) electrolytic capacitors. High ESR will degrade performance.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS*
(T
A
= +25
°
C unless otherwise noted)
Input Voltage (IN to GND) . . . . . . . . . . . . . . . –0.3 V to +6 V
OUT to GND . . . . . . . . . . . . . . . . . . . . . . . . –6.0 V to +0.3 V
OUT, IN Output Current (Continuous) . . . . . . . . . . . . 50 mA
Output Short Circuit Duration to GND . . . . . . . . . . . 10 secs
Power Dissipation, RT-6 . . . . . . . . . . . . . . . . . . . . . . 570 mW
(Derate 8.3 mW/
°
C above +70
°
C)
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 120
°
C/W
Operating Temperature Range
Industrial (A Version) . . . . . . . . . . . . . . . . –40
°
C to +85
°
C
Storage Temperature Range . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature Range (Soldering 10 sec) . . . . . . . . +300
°
C
Vapor Phase (70 sec) . . . . . . . . . . . . . . . . . . . . . . . . +215
°
C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . +220
°
C
ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >3500 V
*This is a stress rating only and functional operation of the device at these or any
other conditions above those indicated in the operation section of this specification
is not implied. Exposure to absolute maximum rating conditions for extended
periods may affect device reliability.
ORDERING GUIDE
Temperature
Range
Branding
Information
Package
Option*
Model
ADM8828ART
ADM8829ART
–40
°
C to +85
°
C
–40
°
C to +85
°
C
MM0
MN0
RT-6
RT-6
*RT-6 = 6-lead SOT-23.
PIN CONFIGURATIONS
TOP VIEW
(Not to Scale)
OUT
IN
CAP–
CAP+
SHDN
GND
ADM8828
1
2
3
6
5
4
TOP VIEW
(Not to Scale)
OUT
IN
CAP+
NC
GND
ADM8829
1
2
3
6
5
4
CAP–
NC = NO CONNECT
PIN FUNCTION DESCRIPTIONS
Mnemonic
Function
CAP+
GND
CAP–
OUT
SHDN
Positive Charge-Pump Capacitor Terminal.
Power Supply Ground.
Negative Charge-Pump Capacitor Terminal.
Output, Negative Voltage.
Shutdown Control Input. This input, when
high, is used to disable the charge pump
thereby reducing the power consumption.
Positive Power Supply Input.
IN
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