Rainbow Electronics MAX684 User Manual
Page 2
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
µs
50
t
START
Shutdown Exit Time
160
200
250
750
1000
1300
kHz
850
1000
1200
Switching Frequency (Note 2)
mV
100
Input Undervoltage Lockout
Hysteresis
V
2.0
2.35
2.6
V
2.7
5.5
V
IN
Input Voltage Range
Input Undervoltage Lockout
Threshold
µA
1
50
I
SHDN
SHDN Input Current Range
mV
630
690
750
V
ON, SHDN
SHDN On Bias Voltage
V
0.35
V
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
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
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
µA
0.1
5
I
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
V
4.80
5.05
5.20
V
OUT
Output Voltage
2.5
SKIP = V
IN
= 3.6V
1.7
MAX684
MAX683
MAX682