SCOPE: FIXED/A DJUSTABLE, LOW POWER CMOS, STEP-UP SWITCHING REGULATOR
Device Type Generic Number
01 MAX631AM(x)/883B
02 MAX631BM(x)/883B
03 MAX632AM(x)/883B
04 MAX632BM(x)/883B
05 MAX633AM(x)/883B
06 MAX633BM(x)/883B
Case Outline(s). The case outlines shall be designated in Mil-Std-1835 and as follows:
Outline Letter Mil-Std-1835 Case Outline Package Code
MAXIM SMD
JA P GDIP1-T8 or CDIP2-T8 8 LEAD CERDIP J8
Absolute Maximum Ratings
Supply Voltage, VOUT ....................................................................................................... +18V
Output Voltage, LX and LBO ........................................................................................... +18V
Input Voltage, LBI, VFB ..................................................................... -0.3V to (+VOUT+0.3V)
LX Output Current ............................................................................................... 450 mA Peak
LBO Output Current ........................................................................................................ 50mA
Lead Temperature (soldering, 10 seconds) ...........................................................……..... +300°C
Storage Temperature ..............................................................................………. -65°C to +150°C
Continuous Po wer Dissipation ..........................................................................…….....TA=+70°C
8 lead CERDIP(derate 8.0mW/°C above +70°C) .................................................……... 640mW
Junct ion Temperat ure TJ ....................................................................................………. +150°C
Thermal Resistance, Junction to Case
8 lead CERDIP, ΘJC: ....................................................................................……….. 55°C/W
Thermal Resista nce, Junc tion to Ambient
8 lead CERDIP. ΘJA: ..................................................................................………. 125°C/W
Recommended Operating Conditions.
Ambient Operating Range (TA) ............................................................……... -55°C to +125°C
Input Voltage Range (VIN)............................ ...... .................. ...... .......……... 2.4V dc to 16.5V dc
Output Voltage Range ( VOUT) ............................................................…….. 2.4V dc to 16.5V dc
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 section s of the sp ecifica tions is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
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TABLE 1 ELECTRICAL TESTS
PARAMETER Symbol CONDITIONS
-55 °C <=TA<= +125°C
VIN=+3.0V
Unless otherwise specified
Group A
Subgroup Device
type Limits
Min
1/
Limits
Max
1/
Units
Operating Voltage +VSVoltage at VOUT 1,2,3 All 2.4 16.4 V
Start-up Voltage VSU Voltage at VOUT 1
2,3 All 1.5
2.0 V
Supply Current
NOTE 2 ISLX Off, VOUT=+5V
LX Off, VOUT=+12V
LX Off, VOUT=+15V 1,2,3 01,02
03,04
05,06
0.4
2.0
2.5 mA
Reference Voltage VREF 1
2,3 All 1.24
1.20 1.38
1.42 µA
Output Voltage VOUT No load, VFB=GND, NOTE 2 1,2,3 01
02
03
04
05
06
4.75
4.5
11.4
10.8
14.25
13.5
5.25
5.5
12.6
13.2
15.75
16.5
V
Line Regulatio n VRLINE R3=816kΩ, R4=100kΩ NOTE 3
3V<VIN<6V 1,2,3 All 0.2 %/VOUT
Load Regulation VRLOAD R3=816kΩ, R4=100kΩ NOTE 3
VIN=6V, IOUT=1mA, 20mA 1,2,3 All 1.0 %/VOUT
Oscillator Duty
Cycle ODC NOTE 2 4 All 40 60 %
LX On Resistance RLXON IX=100mA, VOUT=5V 1 All 12 Ω
Low-Battery Input
Bias Current ILBI 1All 10 nA
Leakage Current ILX VLX=16.5V 1
2,3 All 1
100 µA
Low Battery Input
Threshold Voltage VLBI 1All 1.18 1.44 V
Low-Battery
Output Current ILBO VLBO=0.4V, VLBI=1.18V 1,2,3 All 500 µA
Oscillator
Freq uency Range
NOTE 2
fO
VOUT=+5V
VOUT=+12V
VOUT=+15V
4
4
4
01
02
03
04
05
06
40
35
45.5
40
45.5
40
50
60
56
65
56
65
kHz
VFB Input Bias
Current IFB 1All 10 nA
Diode Forward
Voltage VFIF=100mA 1 All 1.0 V
On Resistance, CP
Leakage Current RCPON VOUT=5.0V, IOUT=±10mA 1All 140 Ω
Low Battery
Output Leakage
Current
ILBOL VLBO=+16.5V, VLBI=+1.44V 1,2,3 All 3.0 µA
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for /883B and SMD 5962-92141 Page 3 of 6
NOTE 1: The algebraic convention, whereby the most negative val ue is a minimum and the most positive a
maximum, is used in this table. Negative current shall be defined as conventional current flow out of
a device terminal.
NOTE 2: S1 set to B and S2 open provides a nominal output voltage of 5 volts for device types 01 and 02;
12 volts for device types 03 and 04; 15 volts for device types 05, 06.
NOTE 3: R3 and R4 gi ve a nominal output volt age of 12 volts with S1 set to A and S2 clo sed.
ORDERING INFORMATION MAXIM PART NUMBER SMD NUMBER
01 MAX631AMJA/883B 5962-9214101MPA
02 MAX631BMJA/883B 5962-9214102MPA
03 MAX632AMJA/883B 5962-9214103MPA
04 MAX632BMJA/883B 5962-9214104MPA
04 MAX633AMJA/883B 5962-9214105MPA
05 MAX633BMJA/883B 5962-9214106MPA
TERMINAL NUMBER 8 LEAD CERDIP
1LBI
2LBO
3 GND
4LX
5 VOUT
6CP
7V
FB
8COMP
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QUALITY ASSURAN CE
Sampling and inspection procedures shall be in accordance with MIL-Prf-38535, Appendix A as specified in Mil-
Std-883.
Screening shall be in accordance with Method 5004 of Mil-Std-883. Burn-in test Method 1015:
1. Test Condition, A, B, C, or D.
2. TA = +125°C mini mum.
3. Interim and final electrical test requirements shall be specified in Table 2.
Quality conformance inspection shall be in accordance with Method 5005 of Mil-Std-883, including Groups A, B,
C, and D inspection.
Group A inspection:
1. Tests as specified in Table 2.
2. Selected subgroups in Table 1, Method 5005 of Mil-Std-883 shall be omitted.
Group C and D inspections:
a. End-point electrical parameters shall be specified in Table 1.
b. Steady-state life test, Method 1005 of Mil-Std-883:
1. Test condition A, B, C, D.
2. TA = +125°C, minimum.
3. Test duration, 1000 hours, except as permitted by Method 1005 of Mil-Std-883.
TABLE 2. ELECTRIC AL TEST REQUIREMENTS
Mil-Std-883 Test Requirements Subgroups
per Method 5005, Table 1
Interim Electric Parameters
Method 5004 1
Final Electrical Parameters
Method 5005 1*, 2, 3, 4
Group A Test Requirements
Method 5005 1, 2, 3, 4
Group C and D End-Point Electrical Parameters
Method 5005 1
* PDA applies to Subgroup 1 only.
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