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MAX1705 Fiches technique(PDF) 2 Page - Maxim Integrated Products

No de pièce MAX1705
Description  1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
Download  20 Pages
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Fabricant  MAXIM [Maxim Integrated Products]
Site Internet  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1705 Fiches technique(HTML) 2 Page - Maxim Integrated Products

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1- to 3-Cell, High-Current, Low-Noise,
Step-Up DC-DC Converters with Linear Regulator
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VOUT = VPOUT = VLBP = 3.6V, CLK/SEL = FB = LBN = LBO = ONA = ONB = TRACK = GND, REF = open (bypassed with 0.22µF),
LX = open, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +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.
ONA, ONB, FBLDO, OUT, POUT to GND...................-0.3V to 6V
PGND to GND.....................................................................±0.3V
POUT to OUT ......................................................................±0.3V
LX to PGND ............................................-0.3V to (VPOUT + 0.3V)
CLK/SEL, REF, FB, TRACK, LDO,
LBN, LBP, LBO to GND.......................-0.3V to (VOUT + 0.3V)
LDO Short Circuit .......................................................Continuous
Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8.70mW/°C above +70°C) ...................696mW
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
CLK/SEL = OUT
-1µA < IREF < 50µA
(Note 1)
IREF = 0µA
CLK/SEL = GND, VFB = VFBLDO = 1.5V,
no load
ONA = GND, ONB = OUT, measure IOUT
(Note 2)
VPOUT = VOUT = 1.5V
VFB = 1.5V
MAX1705, 0A
≤ ILX ≤ 0.5A;
MAX1706, 0A
≤ ILX ≤ 0.25A;
CLK/SEL = OUT
TRACK = VLDO > 2.3V
CLK/SEL = OUT
CONDITIONS
mV
4
15
Reference Load Regulation
V
1.238
1.250
1.262
Reference Output Voltage
µA
180
360
IOUT
Supply Current in
Low-Noise Mode
V
1.219
1.233
1.247
FB Regulation Voltage
V
0.7
Minimum Operating Battery
Voltage
µA
100
190
IOUT
Supply Current in
Low-Power Mode
µA
1
20
IOUT
Supply Current in Shutdown
V
2.00
2.15
2.30
Start-Up to Normal Mode
Transition Voltage
kHz
40
150
300
fLX
Frequency in Start-Up Mode
nA
0.01
50
FB Input Current
V
2.5
5.5
OUT Adjust Range
%
0.65
1.25
Load Regulation
V
VLDO
VLDO
VLDO
+ 0.2
+ 0.3
+ 0.4
OUT Voltage in Track Mode
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
TA = +25°C, ILOAD < 1mA, Figure 2
V
0.9
1.1
Minimum Start-Up Voltage
2.5V < VOUT < 5.5V
mV
0.2
5
Reference Supply Regulation
DC-DC CONVERTER
REFERENCE
VFB = VFBLDO = 1.5V, no load
FB = GND (LX switching)
2.1
mA


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