參數(shù)資料
型號： MAX1703
廠商： Maxim Integrated Products, Inc.
元件分類： DC/DC變換器
英文描述： 1-Cell to 3-Cell, High-Power 1.5A, Low-Noise, Step-Up DC-DC Converter
中文描述： 1節(jié)至3節(jié)電池、大功率(1.5A)、低噪聲、升壓型DC-DC轉(zhuǎn)換器
文件頁數(shù)： 2/16頁
文件大?。?/td> 273K
代理商： MAX1703
Switch On-Resistance
Switch On-Resistance
M
1-Cell to 3-Cell, High-Power (1.5A),
Low-Noise, Step-Up DC-DC Converter
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
OUT,
ON
, AO, POK to GND.....................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
LXP, LXN to PGND .................................-0.3V to (V
POUT
+ 0.3V)
POUT, CLK/SEL, AIN, REF, FB,
POKIN to GND.......................................-0.3V to (V
OUT
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
Narrow SO (derate 8.70mW/°C above +70°C) .............696mW
ELECTRICAL CHARACTERISTICS
(CLK/SEL = AIN =
ON
= POKIN = FB = PGND = GND, OUT = POUT, LXP = LXN, V
OUT
= 5.3V (Note 1),
T
A
= 0°C to +85°C
, unless
otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
PARAMETER
DC-DC CONVERTER
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
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
I
LOAD
< 1mA, T
A
= +25°C (Note 3)
V
OUT
= 1.5V
CLK/SEL = GND
CLK/SEL = GND
(Note 2)
CLK/SEL = OUT
N-channel
V
ON
= V
LXN
= V
OUT
= 5.5V
ON
= OUT
CLK/SEL = GND (Note 1)
CLK/SEL = OUT, no load to full load
V
LXP
= 0V, V
OUT
= V
ON
= 5.5V
(Note 5)
V
FB
< 0.1V, CLK/SEL = OUT,
0
≤
I
LX
≤
1.1A, V
BATT
= 3.7V
Adjustable output, CLK/SEL = OUT,
0
≤
I
LX
≤
1.1A, V
BATT
= 2.2V, V
OUT
= 3.3V
CLK/SEL = OUT (Note 1)
V
FB
= 1.25V
mA
20
160
260
P-Channel Turn-Off Current
POWER-GOOD COMPARATOR
mA
500
800
1100
N-Channel Current Limit
mA
2200
2700
3200
0.075
0.13
0.13
0.25
0.14
0.25
μA
0.1
20
LXN Leakage Current
μA
0.1
20
POUT, LXP Leakage Current
μA
150
300
Supply Current in Low-Noise Mode
DC-DC SWITCHES
μA
65
120
Supply Current in Low-Power Mode
V
0.9
140
1.1
300
Minimum Start-Up Voltage
Frequency in Start-Up Mode
V
0.7
5.5
Input Supply Range
μA
0.1
20
Supply Current in Shutdown
%
-1.6
Load Regulation (Note 6)
V
2.0
2.15
2.3
Output Voltage Lockout Threshold
V
2.5
5.5
Output Voltage Adjust Range
kHz
40
V
4.87
5.05
5.20
Output Voltage
(Note 4)
V
1.21
1.24
1.255
FB Regulation Voltage
nA
0.1
20
FB Input Current
UNITS
MIN
TYP
MAX
P-channel
CLK/SEL = GND
CLK/SEL = OUT
Rising V
POKIN
V
POKIN
= 0.7V
V
1.225
-20
1.250
1.275
20
POKIN Trip Level
POKIN Input Current
nA
I
SINK
(POK) = 1mA, V
OUT
= 3.6V or
I
SINK
(POK) = 20μA, V
OUT
= 1V
V
0.03
0.4
POK Low Voltage
V
OUT
= V
POK
= 5.5V
μA
0.01
1
POK High Leakage Current
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