3.0V ≤ IN ≤ 3.6V for SKIP = 0,
MAX682/MAX683/MAX684
3.3V-Input to Regulated 5V-Output
Charge Pumps
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= 3V, V
SKIP
= 0V, C
IN
= 1µF, C
X
= 0.47µF, C
OUT
= 2µF, I
SHDN
= 22µA; I
MAX
= 250mA for MAX682, I
MAX
= 100mA for MAX683,
I
MAX
= 50mA for MAX684; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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.
IN, OUT, SHDN, SKIP to GND.................................-0.3V to +6V
PGND to GND.....................................................................±0.3V
CXN to GND ................................................-0.3V to (V
IN
+ 0.3V)
CXP to GND..............................................-0.3V to (V
OUT
+ 0.3V)
Continuous Output Current
MAX682........................................................................300mA
MAX683........................................................................150mA
MAX684..........................................................................75mA
Output Short-Circuit Duration...............................................5sec
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C).................471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C)............330mW
Operating Temperature Range
MAX68_E_A....................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
Regulation with V
IN
> 3.6V requires
SKIP = high
R
L
= 5V/I
MAX
(Note 2)
T
A
= +25°C
I
SHDN
=4.4µA
MAX682
SKIP = 0, V
IN
= 3.6V
SKIP = high, 0 ≤ I
LOAD
≤ I
MAX
I
SHDN
= 22µA
CONDITIONS
µs50t
START
Shutdown Exit Time
160 200 250
750 1000 1300
kHz
850 1000 1200
Switching Frequency (Note 2)
mV100
Input Undervoltage Lockout
Hysteresis
V2.0 2.35 2.6
V2.7 5.5V
IN
Input Voltage Range
Input Undervoltage Lockout
Threshold
µA1 50I
SHDN
SHDN Input Current Range
mV630 690 750V
ON, SHDN
SHDN On Bias Voltage
V0.35V
INL, SHDN
SHDN Logic Low Input
mA
250
I
MAX
Maximum Output Current
mA
0.1 0.18
I
Q
No-Load Input Current
%-3∆V
LDR
Load Regulation
UNITSMIN TYP MAXSYMBOLPARAMETER
0°C < T
A
< +85°C
-40°C < T
A
< +85°C
0°C < T
A
< +85°C
150 200 270-40°C < T
A
< +85°C
MAX683 100
MAX684 50
7.5
SHDN = 0, V
IN
= 5.5V, V
OUT
= 0
µA0.1 5I
Q, SHDN
Shutdown Supply Current
0 < I
LOAD
≤ I
MAX
;
3.0V ≤ IN ≤ 3.6V for SKIP = 0,
3.0V ≤ IN ≤ 5.5V for SKIP = IN
V4.80 5.05 5.20V
OUT
Output Voltage
2.5
SKIP = V
IN
= 3.6V
1.7MAX684
MAX683
MAX682
