Rainbow Electronics MAX607 User Manual
Page 2
MAX606/MAX607
Low-Profile, 5V/12V or Adjustable, Step-Up
DC-DC Converters for Flash Memory/PCMCIA Cards
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= 3.3V, GND = PGND = FB = 0V,
SHDN = IN,
T
A
= 0°C to +85°C,
unless otherwise noted. Typical values are at T
A
= +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.
IN to GND .................................................................-0.3V to +6V
LX, OUT to GND .....................................................-0.3V to +15V
PGND to GND.....................................................................±0.3V
FB to GND ..................................................-0.3V to (V
CC
+ 0.3V)
SS, SHDN to GND ....................................................-0.3V to +6V
Continuous Power Dissipation (T
A
= +70°C)
µMAX (derate 4.10mW/°C above +70°C) ....................330mW
SO (derate 5.88mW/°C above +70°C) .........................471mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature .......................................................+160°C
Lead Temperature (soldering, 10sec) .............................+300°C
V
IN
= 3V to 5.5V. For V
FB
below this voltage,
output regulates to 12V.
V
SHDN
= 0 or V
IN
3V < V
IN
< 5V, FB = IN, I
LOAD
= 0 to 180mA
V
IN
= 5.5V
V
IN
= 3V
2V < (V
OUT
+ 0.5V - V
IN
) < 8V (see
Pulse-
Frequency-Modulation Control Scheme
section)
3V < V
IN
< 5.5V
(t
ON
= K / V
IN
)
V
OUT
= 13V
V
SHDN
= V
IN
, V
SS
= 150mV
V
SHDN
= 0, OUT = IN
V
LX
= 12V
4.5V < V
IN
< 5.5V, FB = GND, I
LOAD
= 0 to 120mA
0.1V < V
FB
< (V
IN
- 0.1V)
0.1V < V
FB
< (V
IN
- 0.1V)
V
OUT
= 13V
V
IN
= 3V to 5.5V
V
SHDN
= V
SS
= 0
CONDITIONS
V
0.1
FB Input Low Voltage
µA
±1
SHDN Input Current
V
0.66V
IN
SHDN Input High Voltage
V
0.25V
IN
SHDN Input Low Voltage
0.3
0.7
Switch Off-Time Ratio
3.8
6.0
8.6
µs-A
1.9
3.0
4.3
Switch On-Time Constant (K)
µA
80
OUT Input Current
µA
0.01
10
Shutdown Quiescent Current
150
300
µA
250
500
Quiescent Supply Current
0.5
V
4.8
5.0
5.2
Output Voltage (Note 1)
V
2.4
2.8
V
3.0
5.5
Supply Voltage
Undervoltage Lockout Threshold
k
Ω
30
45
60
SS Resistance
A
0.7
1.1
Switch Current Limit
µA
10
Switch Off-Leakage
Ω
0.4
1
Switch On-Resistance
11.5
12.0
12.5
V
1.96
2.00
2.04
FB Regulation Setpoint
V
V
IN
12.5
Adjustable Output Voltage Range
%
0.5
Line Regulation
UNITS
MIN
TYP
MAX
PARAMETER
V
IN
= 3V to 5.5V. For V
FB
above this voltage,
output regulates to 5V.
V
V
IN
- 0.1
FB Input High Voltage
V
FB
= 2.05V, V
OUT
= 13V
nA
200
FB Input Current
MAX606
MAX607
MAX606
MAX607