參數(shù)資料
型號(hào)： MAX1686
廠商： Maxim Integrated Products, Inc.
元件分類： DC/DC變換器
英文描述： Step-Up DC-DC Converters with Precise, Adaptive Current Limit for GSM
中文描述： 3V至5V穩(wěn)壓型電荷泵，用于SIM卡
文件頁(yè)數(shù)： 2/12頁(yè)
文件大?。?/td> 210K
代理商： MAX1686
M
S tep-Up DC-DC Converters with
Prec ise, Adaptive Current Limit for GS M
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN, ON, LX1, CHG, LIM, FB, OUT, REF to GND.......-0.3V to +7V
LX2 to GND ..............................................................-0.3V to +8V
IN, LX1 Average Current..........................................................1A
Continuous Power Dissipation (T
A
= +70°C)
TSSOP (derate 5.7mW/°C above +70°C) ....................457mW
SO (derate 5.88mW/°C above +70°C).........................471mW
ELECTRICAL CHARACTERISTICS
(V
IN
= V
ON
= +3V, V
LIM
= 1V (MAX1687), V
CHG
= 1V (MAX1688), V
FB
= 1.5V, V
OUT
= 6V,
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.
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) ............................+300° C
IN rising, 1% hysteresis
V
FB
= 0, V
OUT
= 3V (MAX1688)
V
LIM
= V
CHG
= 1V
V
LIM
= V
CHG
= 0.65V
V
FB
= 1.125V, V
OUT
= 3V (MAX1688)
V
FB
rising, 2% hysteresis
I
REF
= 0 to 10μA
V
FB
= 1.5V
Shutdown, V
IN
= 4.2V, LX2 connected to LX1,
V
OUT
= 0, ON = GND
CONDITIONS
0.744
0.46
0.8
0.5
0.856
0.54
Peak Current
V
V
REF
6
4
Output Voltage Range
V
2.4
2.5
2.6
V
2.7
6
Input Voltage Range
Input Undervoltage Lockout
μA
60
110
I
CHG
Source Current
mmho
0.18
0.2
0.22
g
mFB
FB Transconductance
V
1.212
1.250
1.288
FB Set Voltage
V
1.225
1.25
1.275
V
REF
Reference Voltage
mA
2
Input Supply Current
μA
3
10
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
LIM
= V
CHG
= 1V
V
IN
= 2.7V
V
IN
= 2.7V
V
IN
= 4V, V
FB
= 0, V
OUT
= 0
V
LIM
= 1V
V
ON
= 0 or 3V
V
IN
= 2.7V
V
IN
= 6V
V
IN
= 4.2V
V
FB
= 1.5V
0.3
30
0.7
70
P-Channel On-Resistance
Precharge On-Resistance
LX2 Leakage Current
V
0.1
0.18
0.6
R
SENSE
V
IL
Sense Resistor
ON Input Low Voltage
mA
170
200
230
I
RIPPLE
A
I
PEAK
Ripple Current
0.4
0.8
N-Channel On-Resistance
2
0.02
0.1
I
LIM
0.02
0.1
I
ON
V
1.8
1.5
0.05
0.2
I
FB
Input Current
V
IN
= V
LX2
= 6V, V
OUT
= V
ON
= 0
μA
0.05
10
ms
0.7
1.2
1.8
t
DELAY
Shutdown Delay
V
IH
ON Input High Voltage
μA
T
A
= 0°C to +85°C
T
A
= +25°C
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