MAX1606 Maxim, MAX1606 Datasheet - Page 2

• Manufacturer Part Number: MAX1606
• Description: 28V Internal Switch LCD Bias Supply with True Shutdown
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
V
BATT to SW ..............................................................-0.3V to +6V
SHDN, LIM to GND.....................................-0.3V to (V
LX to GND ..............................................................-0.3V to +30V
Current into LX or BATT..............................................600mA
Current out of SW .......................................................600mA
Output Short-Circuit Duration ........................................Indefinite
ELECTRICAL CHARACTERISTICS
(V
28V Internal Switch LCD Bias Supply
with True Shutdown
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.
2
CC
V
BATT Input Voltage Range
V
V
V
BATT Input Supply Current
BATT Shutdown Supply Current
V
BATT Line Regulation
Load Regulation
Efficiency
Feedback Set Point
Feedback Input Bias Current
INDUCTOR CONNECTIONS (LX, SW)
LX Voltage Range
LX Switch Current Limit
LX On-Resistance
LX Leakage Current
Maximum LX On-Time
Minimum LX Off-Time
SW Leakage Current
CC
CC
CC
CC
CC
CC
, FB, BATT, SW to GND .....................................-0.3V to +6V
_______________________________________________________________________________________
= 3.3V, V
Supply Voltage
Undervoltage Lockout
Quiescent Supply Current
Shutdown Supply Current
Line Regulation
PARAMETER
CC
= BATT = SHDN, T
A
SYMBOL
I
LX(MAX)
V
∆V
∆V
∆V
V
= 0°C to +85°C, unless otherwise noted. Typical values are at T
I
V
BATT
t
UVLO
V
V
R
t
BATT
I
I
OFF
ON
CC
FB
CC
LNR
LNR
LDR
FB
LX
LX
(Note 1)
(Note 1)
V
V
SHDN = GND
V
SHDN = GND
V
V
V
V
V
I
L1 = 100µH, V
V
LIM = V
LIM = floating
LIM = GND
V
V
V
V
V
SW = GND, V
LOAD
CC
FB
FB
OUT
CC
OUT
CC
OUT
FB
CC
CC
LX
FB
FB
CC
= 28V
= 1.3V
= 1.3V
= 1.3V
> 1.1V
< 0.8V (soft-start)
falling, 30mV typical hysteresis
= V
= V
= 5V, I
= 3.3V, I
= 18V, I
= 18V, I
= 18V, V
+ 0.3V)
= 0mA to 20mA
CC
LIM
LIM
RMS
RMS
LX
= 2.4V to 5.5V
= 3.3V, V
LX
BATT
LOAD
LOAD
= 100mA
CC
BATT
CONDITIONS
= 100mA
= V
= 5.5V
= 1mA, V
= 1mA,
= 3.6V, I
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
BATT
BATT
8-Pin µMAX (derate 4.1mW/°C above +70°C) .............330mW
= 0.8V to 5.5V
= V
LOAD
BATT
LIM
= 3.3V,
= 10mA
= 3.6V,
1.225
0.20
MIN
0.40
0.10
2.4
0.8
2.0
0.8
3.9
10
A
A
= +70°C)
= +25°C.)
0.125
TYP
0.05
0.05
1.25
0.50
0.25
160
2.2
0.1
0.1
0.1
0.8
1.0
5.0
20
88
13
5
1
1.275
0.285
MAX
2.37
0.56
0.15
320
100
5.5
5.5
1.2
6.0
40
28
16
1
1
2
2
1
UNITS
%/mA
%/V
%/V
µA
µA
µA
µA
nA
µA
µA
µs
µs
%
Ω
V
V
V
V
V
A