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MAX4193ESA+

P1-P3P4-P6P7-P9P10-P12P13-P14
General Description
Maxim’s MAX630 and MAX4193 CMOS DC-DC regula-
tors are designed for simple, efficient, minimum-size
DC-DC converter circuits in the 5mW to 5W range. The
MAX630 and MAX4193 provide all control and power
handling functions in a compact 8-pin package: a
1.31V bandgap reference, an oscillator, a voltage com-
parator, and a 375mA N-channel output MOSFET. A
comparator is also provided for low-battery detection.
Operating current is only 70µA and is nearly indepen-
dent of output switch current or duty cycle. A logic-level
input shuts down the regulator to less than 1µA quies-
cent current. Low-current operation ensures high effi-
ciency even in low-power battery-operated systems.
The MAX630 and MAX4193 are compatible with most
battery voltages, operating from 2.0V to 16.5V.
The devices are pin compatible with the Raytheon bipo-
lar circuits, RC4191/2/3, while providing significantly
improved efficiency and low-voltage operation. Maxim
also manufactures the MAX631, MAX632, and MAX633
DC-DC converters, which reduce the external compo-
nent count in fixed-output 5V, 12V, and 15V circuits.
See Table 2 at the end of this data sheet for a summary
of other Maxim DC-DC converters.
Applications
+5V to +15V DC-DC Converters
High-Efficiency Battery-Powered DC-DC
Converters
+3V to +5V DC-DC Converters
9V Battery Life Extension
Uninterruptible 5V Power Supplies
5mW to 5W Switch-Mode Power Supplies
Features
♦ High Efficiency—85% (typ)
♦ 70µA Typical Operating Current
♦ 1µA Maximum Quiescent Current
♦ 2.0V to 16.5V Operation
♦ 525mA (Peak) Onboard Drive Capability
♦ ±1.5% Output Voltage Accuracy (MAX630)
♦ Low-Battery Detector
♦ Compact 8-Pin Mini-DIP and SO Packages
♦ Pin Compatible with RC4191/2/3
MAX630/MAX4193
CMOS Micropower Step-Up
Switching Regulator
________________________________________________________________ Maxim Integrated Products 1
I
C
+V
S
GND
1
2
8
7
LBD
V
FB
C
X
L
X
LBR
TOP VIEW
3
4
6
5
MAX630
MAX4193
Pin Configuration
Ordering Information
MAX630
+5V IN
470μH
+15V
OUT
47pF
8
LBD
1
LBR
2
C
X
4
GND
7
V
FB
3
L
X
6
I
C
5
+V
S
+5 TO +15V CONVERTER
PART TEMP RANGE
PIN-
PACKAGE
MAX630CPA 0°C to +70°C 8 PDIP
MAX630CSA 0°C to +70°C 8 SO
MAX630CJA 0°C to +70°C 8 CERDIP
MAX630EPA -40°C to +85°C 8 PDIP
MAX630ESA -40°C to +85°C 8 SO
MAX630EJA -40°C to +85°C 8 CERDIP
MAX630MJA -55°C to +125°C 8 CERDIP**
MAX630MSA/PR -55°C to +125°C 8 SO†
M AX 630M S A/P R- T -55°C to +125°C 8 SO†
MAX4193C/D 0°C to +70°C Dice*
MAX4193CPA 0°C to +70°C 8 PDIP
MAX4193CSA 0°C to +70°C 8 SO
MAX4193CJA 0°C to +70°C 8 CERDIP
MAX4193EPA -40°C to +85°C 8 PDIP
MAX4193ESA -40°C to +85°C 8 SO
MAX4193EJA -40°C to +85°C 8 CERDIP
MAX4193MJA -55°C to +125°C 8 CERDIP**
Typical Operating Circuit
19-0915; Rev 2; 9/08
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
*Dice are specified at T
A
= +25°C. Contact factory for dice
specifications.
**Contact factory for availability and processing to MIL-STD-883.
†Contact factory for availibility.
MAX630/MAX4193
CMOS Micropower Step-Up
Switching Regulator
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(+V
S
= +6.0V, T
A
= +25°C, I
C
= 5.0µA, unless otherwise noted.)
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.
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
MAX630 MAX4193
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX MIN TYP MAX
UNITS
Operating 2.0
16.5
Supply Voltage +V
S
Startup 1.9
2.4
16.5
V
Internal Reference Voltage V
REF
1.29 1.31 1.33 1.24 1.31 1.38
V
Switch Current I
SW
V
3
= 400mV 75
150
75
150
mA
Supply Current (at Pin 5) I
S
I
3
= 0mA 70
125
90 µA
Efficiency 85 85 %
Line Regulation
0.5V
0
< V
S
< V
0
(Note 1)
0.08
0.2
0.06
0.5
% V
OUT
Load Regulation
V
S
= +5V, P
LOAD
= 0 to
150mW (Note 1)
0.2
0.5 0.2 0.5
% V
OUT
Operating Frequency Range
F
O
(Note 2) 0.1 40 75 0.1 25 75 kHz
Reference Set Internal
Pulldown Resistance
R
IC
V
6
= V
S
0.5
1.5
10 0.5 1.5 10 MΩ
Reference Set Input Voltage
Threshold
V
IC
0.2
0.8
1.3 0.2 0.8 1.3 V
Switch Current I
SW
V
3
= 1.0V
100 100
mA
Switch Leakage Current I
CO
V
3
= 16.5V
0.01
1.0
0.01
5.0 µA
Supply Current (Shutdown) I
SO
I
C
< 0.01µA
0.01
1.0
0.01
5.0 µA
Low-Battery Bias Current I
LBR
0.01
10
0.01
10 nA
Capacitor Charging Current I
CX
30 30 µA
C
X
+ Threshold Voltage +V
S
- 0.1 +V
S
- 0.1 V
C
X
- Threshold Voltage
0.1
0.1 V
V
FB
Input Bias Current I
FB
0.01
10
0.01
10 nA
Low-Battery Detector Output
Current
I
LBD
V
8
= 0.4V, V
1
= 1.1V
250 600 250 600
µA
Low-Battery Detector Output
Leakage
I
LBDO
V
8
= 16.5V, V
1
= 1.4V
0.01
5.0
0.01
5.0 µA
MAX630/MAX4193
CMOS Micropower Step-Up
Switching Regulator
_______________________________________________________________________________________ 3
L
X
ON-RESISTANCE vs.
TEMPERATURE
MAX630/4193 toc01
TEMPERATURE (°C)
L
X
R
ON
(Ω)
1007550250-25-50
2
4
6
8
0
125
+V
S
= 2.5V
+V
S
= 6V
+V
S
= 16V
SUPPLY CURRENT vs.
TEMPERATURE
MAX630/4193 toc02
TEMPERATURE (°C)
I
S
(μA)
1007550250-25-50
40
20
80
60
120
100
140
0
125
SUPPLY CURRENT vs.
SUPPLY VOLTAGE
MAX630/4193 toc03
+V
S
(V)
I
S
(μA)
1412108642
50
150
100
250
200
300
16
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS
(+V
S
= +6.0V, T
A
= Full Operating Temperature Range, I
C
= 5.0µA, unless otherwise noted.)
MAX630 MAX4193
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX MIN TYP MAX
UNITS
Supply Voltage +V
S
2.2 16.5 3.5 16.5
V
Internal Reference Voltage V
REF
1.25 1.31 1.37 1.20 1.31 1.42
V
Supply Current (Pin 5) I
S
I
3
= 0mA 70
200
90
300
µA
Line Regulation
0.5V
0UT
< V
S
< V
0UT
(Note 1)
0.2
0.5
0.5
1.0
% V
OUT
Load Regulation
V
S
= 0.5V
0
, P
L
= 0 to
150mW (Note 1)
0.5
1.0
0.5
1.0
% V
OUT
0°C ≤ T
A
≤
+70°C
0.45 1.5
10
0.45 1.5
10
-40°C ≤ T
A
≤
+85°C
0.4 1.5
10
0.4 1.5
10
Reference Set Internal
Pulldown Resistance
R
IC
V
6
= V
S
-55°C ≤ T
A
≤
+125°C
0.3 1.5
10
0.3 1.5
10
MΩ
Reference Set Input Voltage
Threshold
V
IC
0.2 0.8
1.3
0.2 0.8
1.3 V
Switch Leakage Current I
CO
V
3
= 16.5V
0.1
30
0.1
30 µA
Supply Current (Shutdown) I
SO
I
C
< 0.01µA
0.01
10
0.01
30 µA
Low-Battery Detector Output
Current
I
LBD
V
8
= 0.4V, V
1
= 1.1V
250 600 250 600
µA
Note 1: Guaranteed by correlation with DC pulse measurements.
Note 2: The operating frequency range is guaranteed by design and verified with sample testing.
P1-P3P4-P6P7-P9P10-P12P13-P14

MAX4193ESA+

Mfr. #:
Buy MAX4193ESA+
Manufacturer:
Maxim Integrated
Description:
Switching Voltage Regulators CMOS uPower Step Up Switching Reg
Lifecycle:
New from this manufacturer.
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