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MAX732CPAMAXIM ?N/a11avai+5V/Adjustable Step-Up Current-Mode DC-DC Converters
MAX732EPAMaxim ?N/a100avai+5V/Adjustable Step-Up Current-Mode DC-DC Converters
MAX732EWEMAXIMN/a42avai+5V/Adjustable Step-Up Current-Mode DC-DC Converters
MAX733EPAMAXIMN/a268avai+12V/+15V Step-Up Current-Mode Pwm Regulators
MAX733EWEN/a19avai+12V/+15V Step-Up Current-Mode Pwm Regulators


MAX733EPA ,+12V/+15V Step-Up Current-Mode Pwm Regulatorsapplications information, refer to AN-4.1, MAX732 E V Surface-Mount Evaluation Board and Flash EE ..
MAX733EWE ,+12V/+15V Step-Up Current-Mode Pwm RegulatorsGeneral Description The MAX732/MAR733 are CMOS step-up DC-DC switch- mode regulators. The MAX73 ..
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MB6021A ,SINGLE CHIP CODEC WITH FILTERSFUJITSU hTCRoirLECTR()NTCS 31.5 D, " 37u=17aa 001.71.55 =1 "hu April 1990 Edition 3.0 DA TA ..
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MB6022A ,SINGLE CHIP CODEC WITH FILTERSFUNCTIONAL DESCRIPTION The simplified
MB6M ,MINIATURE GLASS PASSIVATED SINGLE-PHASE BRIDGE RECTIFIERThermal Characteristics (TA = 25°C unless otherwise noted)Parameter Symbol MB2M MB4M MB6M UnitDevic ..


MAX732CPA-MAX732EPA-MAX732EWE-MAX733EPA-MAX733EWE
+12V/+15V Step-Up Current-Mode Pwm Regulators
19-3966; Rev 2; 3/96
seLh'l] 2t hAMI
+ " V/+15 ll Step-Up (tturrenbUlodle
General Doocription
The MAX732/MAR733 are CMOS step-up DC-DC switch-
mode regulators. The MAX732 is a +12V regulator that
accepts inputs from 4.0V to 9.3V and delivers up to
200mA of DC current. The MAX733 is a +15V regulator
that delivers up to 125mA and accepts inputs from 4.0V
to 11.0V. Typical full-load efficiencies are 85% to 92%.
They require only a single inductor value of 50PH to
function over their entire ranges, so no inductor-relattrd
design is necessary. Accuracy is guaranteed over
temperature, line, and load variations. The MAX732/
MAX733 use a current-mode pulse-width modulation
(PWM) controller to provide precise output regulation
and low subharmonic noise. Typical no load supply
current is 1.7mA. Fixed 170kHz oscillator frequencies
allow easy filtering ot ripple and noise and provide for
small external components.
The MAX732/MAX733 feature cycle-by-cycle current
limiting, overcurrent llmiting. undervoltage lockout, and
programmable soft-start protection.
For an adjustable version at these devices, refer to the
MAX752 data sheet. For lower-power step-up applica-
tions, refer to the MAX632/MAX633 and MAX642/
MAX643 data sheets. For more applications information,
refer to AN-4.1, MAX732 E V Surface-Mount Evaluation
Board and Flash EEPROM Power Supply Application
Notes.
Applications
Flash Memory Programming Power Supply
Portable Instruments
Distributed Power Systems
Computer Peripherals
DC-DC Converter Module Replacement
Top View _ TiioN l U El V,
Typical Application Ctrcmt - VREF LE "i'/h%l'' TI vow
3 32 LX
SS E MAX733 E
cc CE E] GND
-4j)NI T0
~9.3V DIP
SHON MC. [1 q E V+
Mnxma LX ->~12V SHDN CE E N.C.
MAX732 VREF E E] Vour
VOUT N.C, 4 MAXIM E LX
ss a 52%;; E LX
ss GND VREF ' :: co E E LX
J... L. . GND (E Cal MC.
L :5 GND(SWITCH) [E :1 snowmen)
E 'OPTIONAL CAPACITORS SO
MAXIM Maxim Integrated Products 1
PWM Regulators
Features
. Load Cumnt: Guaranteed to 200mA with No
External MOSFET (125mA tor MAX733)
. 170kHz Hlgh-Frmtuertey Current-Mode PWM
t Small Inductor and No Component Design
Roqulrod
. 85% to 92% Typical Efflttlttrtttltt8 at Full Load
. Overcurrent and Sott-sum Protection
. 8-Pln DIR 18-Pln Wide SO Packages
. Step-Up trom tt 4.0V Input
. Shutdown Pln
Ordering Information
PART TEMP. RANGE PIN-PACKAGE
MAx732CPA 0°C to r70'C a Plastic DIP
MAX732CWE tPC to +70°c 16 Wide so
MAx732C/D 0°C to +7ty'C Dice'
MAX732EPA -40°c to +85°C a Plastic DIP
MAX732EWE -4tPC to o85''C 16 Wide so
MAX732MJA -55°c to +125°c a CERDIP
MAX733CPA tPC to +70°C 8 Plastic DIP
MAX733CWE 0°C to +70°c 16 Wide so
MAX733C/D tPC to +70°c Dice'
MAX733EPA 40°C to '85''C a Plastic DIP
MAX733EWE -40''C to are 16 Wide so
MAX733MJA -55''C to +125°c a CERDIP
'Contact factory for dice specifications.
Pin Configurations
& the latest literature: http:llwww.maxim-ie.com,
£81XVW/381XVW
+12V/+15V Step-Up Current-Mode
PWM Regulators
ABSOLUTE MAXIMUM RATINGS
Pin Voltages
t' LX ...................................... +17V, Ah 3V
............................................. i25V
SS. CC SHDN ...................... -0. 3V to (V+ + o. 3V)
Peak Switch Current (ILx) ............................ 1 .5A
Reference Current (IVREF) .......................... 2.5mA
Continuous Power Dissipation (TA = +7tPC)
Plastic DIP (derate 6.9mW/°C above +70°C) ....... 550mw
Wide SO (derate 9.5mW/°C above +70°C) ......... 760mW
CERDIP (derate 8.0mW/°C above '70''C) .......... 640mW
Operating Temperature Ranges:
MAX73_C_ ............................... 0''C to +7tPC
MAX73_E_ .................. . MtPC to *85''C
MAX73_MJA ........................... -55''C to +125''C _
Junction Temperatures:
MAX73_C_/E_ ................................. +150°C
MAX73_MJA ........................ +175°C
Storage Temperature Range ......... AW'C to +160°C
Lead Temperature (soldering, 10 sec) ............... +300°C
Stresses beyond those listed under "Atysoluttt Maximum Ratings" may cause permanent damage to the device. These m stress ratings only, and Iunctional
oper_atlon of the devices at (hose or any 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 "rtiabiiity.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 2, Ve = 5V, ILOAD = 0mA, TA =
TMIN to TMAX, unless otherwise noted, typical values are at TA = +25''C.)
1 MAX 732/ MAX 7 33
MAX732 MAX133
PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UMTS
V+ = 4,5v to 9.3V, MAX732C/E 11.52 12.0 12.48
0 < ILOAD < 150mA MAX732M 11.40 12.0 12.60
= 6V to 9.3V, MAX732C/E 11.52 12.0 12.48
Output Voltage 0 < 'LOAD < 200mA MAX732M 11.40 12.0 12.60 v
[1'1gt(,teal1Ji,,, MAX733C/E/M 14.25 15.0 15.75
21/23:: 1<1¥é5mA MAX733C/E/M 14.25 15.0 15.75
input Voltage Range 4.0 9.3 4.0 It V
Line Regulation V+ = 4V to 9.3V 0.20 %/1t
V+ = 4Vto11V 0.20
Load Regulation ILOAD = 0mA to 100mA 0.0035 0.0035 %/mA
Efficiency V+ = 5V, ILOAD = 100mA 88 88 %
Supply Current Includes switch current 1.7 3.0 1.7 3.0 mA
gTrrrN = o, Entire circuit 70 100 55 100
Standby Current PA
SHDN = 0, Into V+ 6 6
Shutdown Input VIH (Note 1) 2.0 2.0 v
Threshold VIL (Note 1) 0.25 0.25
'elf/trl/n/ri,",,', 1.0 1.0 PA
Short-Circuit Current 1.5 1.5 A
Undervoltage Lockout 3.7 4.0 3.7 4.0 V
1m " XL {LI
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