SCOPE: FIXED/ADJUSTABLE, 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, V
OUT
....................................................................................................... +18V
Output Voltage, L
X
and LBO ........................................................................................... +18V
Input Voltage, LBI, VFB ..................................................................... -0.3V to (+V
OUT
+0.3V)
L
X
Output Current ............................................................................................... 450 mA Peak
LBO Output Current ........................................................................................................ 50mA
Lead Temperature (soldering, 10 seconds) ...................................................................... +300
C
Storage Temperature ........................................................................................ -65
C to +150
C
Continuous Power Dissipation .....................................................................................T
A
=
+
70
C
8 lead CERDIP(derate 8.0mW/
C above +70
C) .......................................................... 640mW
Junction Temperature T
J
.............................................................................................. +150
C
Thermal Resistance, Junction to Case
8 lead CERDIP,
JC: ............................................................................................... 55
C/W
Thermal Resistance, Junction to Ambient
8 lead CERDIP.
JA: ............................................................................................ 125
C/W
Recommended Operating Conditions.
Ambient Operating Range (T
A
) ..................................................................... -55
C to
+
125
C
Input Voltage Range (V
IN
).......................................................................... 2.4V dc to 16.5V dc
OutputVoltage Range (V
OUT
) .................................................................... 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 sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
----------------------------
Electrical Characteristics of MAX631/632/633/883B
19-0231
Rev. D
for /883B and SMD 5962-92141
Page 2 of
6
TABLE 1 ELECTRICAL TESTS
PARAMETER
Symbol
CONDITIONS
-55
C <=T
A
<= +125
C
V
IN
=+3.0V
Unless otherwise specified
Group A
Subgroup
Device
type
Limits
Min
1/
Limits
Max
1/
Units
Operating Voltage
+V
S
Voltage at V
OUT
1,2,3
All
2.4
16.4 V
Start-up Voltage
V
SU
Voltage at V
OUT
1
2,3
All
1.5
2.0
V
Supply Current
NOTE 2
I
S
L
X
Off, V
OUT
=+5V
L
X
Off, V
OUT
=+12V
L
X
Off, V
OUT
=+15V
1,2,3
01,02
03,04
05,06
0.4
2.0
2.5
mA
Reference Voltage
V
REF
1
2,3
All
1.24
1.20
1.38
1.42
A
Output Voltage
V
OUT
No load, V
FB
=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 Regulation
VR
LINE
R3=816k
, R4=100k
NOTE 3
3V<V
IN
<6V
1,2,3
All
0.2 %/V
OUT
Load Regulation
VR
LOAD
R3=816k
, R4=100k
NOTE 3
V
IN
=6V, I
OUT
=1mA, 20mA
1,2,3
All
1.0 %/V
OUT
Oscillator Duty
Cycle
O
DC
NOTE 2
4
All
40
60 %
LX On Resistance
R
LXON
I
X
=100mA, V
OUT
=5V
1
All
12
Low-Battery Input
Bias Current
I
LBI
1
All
10 nA
Leakage Current
I
LX
V
LX
=16.5V
1
2,3
All
1
100
A
Low Battery Input
Threshold Voltage
V
LBI
1
All
1.18
1.44 V
Low-Battery
Output Current
I
LBO
V
LBO
=0.4V, V
LBI
=1.18V
1,2,3
All
500
A
Oscillator
Frequency Range
NOTE 2
f
O
V
OUT
=+5V
V
OUT
=+12V
V
OUT
=+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
I
FB
1
All
10 nA
Diode Forward
Voltage
V
F
I
F
=100mA
1
All
1.0 V
On Resistance, CP
Leakage Current
RCP
ON
V
OUT
=5.0V, I
OUT
=
10mA
1
All
140
Low Battery
Output Leakage
Current
I
LBOL
V
LBO
=+16.5V, V
LBI
=+1.44V
1,2,3
All
3.0
A
----------------------------
Electrical Characteristics of MAX631/632/633/883B
19-0231
Rev. D
for /883B and SMD 5962-92141
Page 3 of
6
NOTE 1: The algebraic convention, whereby the most negative value 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 give a nominal output voltage of 12 volts with S1 set to A and S2 closed.
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
1
LBI
2
LBO
3
GND
4
LX
5
VOUT
6
CP
7
V
FB
8
COMP
----------------------------
Electrical Characteristics of MAX631/632/633/883B
19-0231
Rev. D
for /883B and SMD 5962-92141
Page 4 of
6
QUALITY ASSURANCE
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 minimum.
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. ELECTRICAL 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.
----------------------------
Electrical Characteristics of MAX631/632/633/883B
19-0231
Rev. D
for /883B and SMD 5962-92141
Page 5 of
6
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