參數(shù)資料
型號(hào)： MAX889
廠商： Maxim Integrated Products, Inc.
英文描述： High-Frequency, Regulated, 200mA, Inverting Charge Pump
中文描述： 高頻、穩(wěn)壓型、200mA、反相電荷泵
文件頁(yè)數(shù)： 2/8頁(yè)
文件大?。?/td> 301K
代理商： MAX889
M
High-Frequency, Regulated,
200mA, Inverting Charge Pump
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN to GND.................................................................-0.3V to +6V
FB,
SHDN
, CAP+ to GND............................-0.3V to (V
IN
+ 0.3V)
AGND to GND.......................................................-0.3V to +0.3V
OUT to GND.............................................................-6V to +0.3V
CAP- to GND ............................................(V
OUT
- 0.3V) to +0.3V
Continuous Output Current...............................................250mA
Output Short-Circuit Duration........................................Indefinite
ELECTRICAL CHARACTERISTICS
(V
IN
= V
SHDN
= +5V, capacitors from Table 1,
T
A
=
0
°
C to +85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Continuous Power Dissipation (T
A
= +70
°
C)
8-Pin SO (derate 5.88mW/
°
C above +70
°
C)...............471mW
Operating Temperature Range...........................-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s) ................................+300
°
C
PARAMETER
SYMBOL
V
IN
V
OUT
I
OUT(MAX)1
I
OUT(MAX)2
CONDITIONS
MIN
2.7
-2.5
200
145
TYP
MAX
5.5
-V
IN
UNITS
V
V
Supply Voltage Range
Output Voltage Range
R
LOAD
= 100
R
LOAD
= 100
V
IN
= 5V, V
OUT
= -3.3V
V
IN
= 3.3V, V
OUT
= -2.5V
Maximum Output Current
mA
MAX889R
MAX889S
MAX889T
MAX889R
MAX889S
MAX889T
6
12
24
3.3
5.5
11
0.1
12
24
48
7
12
22
50
Quiescent Supply
Current (Free-Run Mode)
I
Q(FREE-RUN)
No load, V
FB
=
V
IN
mA
Quiescent Supply
Current (Regulated Mode)
I
Q(REGULATED)
No load, V
OUT
regulated to
-3.3V
mA
Shutdown Supply Current
I
SHDN
V
SHDN
= 0
μ
A
Open-Loop Output
Resistance (Free-Run Mode)
Output Resistance
SHDN,
FB Input Bias Current
FB Input Offset Voltage
Load Regulation
R
O
V
FB
= V
IN
2.0
4.5
R
O(REG1)
V
OUT
regulated to -3.3V
0.05
μ
A
mV
mV
±
1
±
35
I
LOAD
= 0
I
OUT
= 0 to 200mA
±
3
10
IN Undervoltage Lockout
Threshold
V
IN
rising (30mV hysteresis)
2.3
2.6
V
SHDN
Logic High
SHDN
Logic Low
V
IH
V
IL
0.7 x V
IN
V
IN
= +2.7V to +5.5V
0.3 x V
IN
0.62
1.25
2.5
V
MAX889R
MAX889S
MAX889T
0.375
0.75
1.5
0.5
1
2
Switching Frequency
f
OSC
MHz
Thermal Shutdown Threshold
Junction temperature rising
(15
°
C hysteresis)
160
°
C
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