CMOS Micropower Step-Up
Switching Regulator
MAX630/MAX4193
ABSOLUTE MAXIMUM RATINGS
Supply Voltage .......................................................................18V
Storage Temperature Range ............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Operating Temperature Range
MAX630C, MAX4193C........................................0°C to +70°C
MAX630E, MAX4193E .....................................-40°C to +85°C
MAX630M, MAX4193M..................................-55°C to +125°C
Power Dissipation
8-Pin PDIP (derate 6.25mW/°C above +50°C).............468mW
8-Pin SO (derate 5.88mW/°C above +50°C)................441mW
8-Pin CERDIP (derate 8.33mW/°C above +50°C)........833mW
Input Voltage (Pins 1, 2, 6, 7) .....................-0.3V to (+V
S
+ 0.3V)
Output Voltage, L
X
and LBD ..................................................18V
L
X
Output Current ..................................................525mA (Peak)
LBD Output Current ............................................................50mA
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
(+V
S
= +6.0V, T
A
= +25°C, I
C
= 5.0µA, unless otherwise noted.)
PARAMETER
Supply Voltage
Internal Reference Voltage
Switch Current
Supply Current (at Pin 5)
Efficiency
Line Regulation
Load Regulation
Operating Frequency Range
Reference Set Internal
Pulldown Resistance
Reference Set Input Voltage
Threshold
Switch Current
Switch Leakage Current
Supply Current (Shutdown)
Low-Battery Bias Current
Capacitor Charging Current
C
X
+ Threshold Voltage
C
X
- Threshold Voltage
V
FB
Input Bias Current
Low-Battery Detector Output
Current
Low-Battery Detector Output
Leakage
I
FB
I
LBD
I
LBDO
V
8
= 0.4V, V
1
= 1.1V
V
8
= 16.5V, V
1
= 1.4V
250
F
O
R
IC
V
IC
I
SW
I
CO
I
SO
I
LBR
I
CX
V
3
= 1.0V
V
3
= 16.5V
I
C
< 0.01µA
0.5V
0
< V
S
< V
0
(Note 1)
V
S
= +5V, P
LOAD
= 0 to
150mW (Note 1)
(Note 2)
V
6
= V
S
0.1
0.5
0.2
100
0.01
0.01
0.01
30
+V
S
- 0.1
0.1
0.01
600
0.01
5.0
10
250
1.0
1.0
10
SYMBOL
+V
S
V
REF
I
SW
I
S
V
3
= 400mV
I
3
= 0mA
CONDITIONS
Operating
Startup
MAX630
MIN
2.0
1.9
1.29
75
1.31
150
70
85
0.08
0.2
40
1.5
0.8
0.2
0.5
75
10
1.3
0.1
0.5
0.2
100
0.01
0.01
0.01
30
+V
S
- 0.1
0.1
0.01
600
0.01
5.0
10
5.0
5.0
10
125
1.33
TYP
MAX
16.5
MIN
2.4
1.24
75
1.31
150
90
85
0.06
0.2
25
1.5
0.8
0.5
0.5
75
10
1.3
MAX4193
TYP
MAX
16.5
1.38
UNITS
V
V
mA
µA
%
% V
OUT
% V
OUT
kHz
MΩ
V
mA
µA
µA
nA
µA
V
V
nA
µA
µA
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
