1 2 V/1 5 V o r Ad ju s t a b le , Hig h -Effic ie n c y,
Lo w I , Ste p-Up DC-DC Conve rte rs
Q
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V+ to GND.......................................-0.3V to 17V
REF, LBO, LBI, SHDN, FB............................-0.3V to (V+ + 0.3V)
LX..............................................................................-0.3V to 17V
LX Peak Current....................................................................1.5A
LBO Current..........................................................................5mA
Operating Temperature Ranges:
MAX76_C_A........................................................0°C to +70°C
MAX76_E_A .....................................................-40°C to +85°C
MAX76_MJA ..................................................-55°C to +125°C
Junction Temperatures:
Continuous Power Dissipation (T = +70°C)
MAX76_C_A/E_A..........................................................+150°C
MAX76_MJA.................................................................+175°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
A
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C).........................471mW
CERDIP (derate 8.00mW/°C above +70°C).................640mW
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.
ELECTRICAL CHARACTERISTICS
1/MAX762
(V+ = 5V, I
= 0mA, C
= 0.1µF, T = T
A
to T typical values are at T = +25°C, unless otherwise noted.)
MAX, A
LOAD
REF
MIN
PARAMETER
Supply Voltage
SYMBOL
CONDITIONS
MIN
2
TYP
MAX
16.5
16.5
16.5
UNITS
Figure 2, bootstrapped
V+
MAX76_C/E
MAX76_M
3
V
Figure 3 or 5 with
external resistors.
3.1
Minimum Operating Voltage
Minimum Start-Up Voltage
Figure 2, bootstrapped
Figure 2, bootstrapped
1.7
1.7
V
V
2.0
V+ = 16.5V, normal operation, SHDN = 0V,
non-bootstrapped
88
110
Supply Current
µA
µA
Figure 2, MAX761, V = 5V, SHDN = 0V,
IN
normal operation
300
Shutdown Current
V+ = 10.0V, shutdown mode, SHDN = V+
1
5
0mA ≤ I
3V ≤ V+ ≤ 12V
≤ 75mA,
LOAD
11.52
11.52
14.4
12.0
12.48
Figure 2,
MAX761,
bootstrapped
0mA ≤ I ≤ 150mA,
LOAD
12.0
15.0
15.0
12.48
15.6
15.6
4.75V ≤ V+ ≤ 12V
Output Voltage
(Note 1)
V
OUT
V
0mA ≤ I ≤ 50mA,
LOAD
Figure 2,
MAX762,
bootstrapped
3V ≤ V+ ≤ 15V
0mA ≤ I ≤ 100mA,
LOAD
14.4
4.75V ≤ V+ ≤ 15V
Peak Current at LX
Maximum Switch-On Time
Minimum Switch-Off Time
Load Regulation
I
See Figure 4b
0.75
6
1.0
8
1.25
10
A
µs
PEAK
t
ON
t
1.0
1.3
1.6
µs
OFF
Figure 2, 0mA ≤ I
≤ 200mA, bootstrapped
0.0042
0.08
%/mA
%/V
LOAD
Line Regulation
Figure 2, 4V ≤ V ≤ 6V, bootstrapped
IN
Figure 2, bootstrapped, V
= 12V,
OUT
Efficiency
86
%
60mA ≤ I
≤ 120mA
LOAD
MAX76_C
MAX76_E
MAX76_M
1.4700
1.4625
1.4550
1.50
1.50
1.50
1.5300
1.5375
1.5450
Reference Voltage
V
REF
V
2
_______________________________________________________________________________________
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