General Description
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/
MAX4995C programmable current-limit switches fea-
ture internal current limiting to prevent damage to host
devices due to faulty load conditions. These analog
switches feature a low 130m?(typ) on-resistance and
operate from a +1.7V to +5.5V input voltage range. The
current limit is adjustable from 50mA to 600mA, making
these devices ideal for SDIO (secure digital input/out-
put) and other load-switching applications.
Each device in the family handles an overcurrent event
differently depending on the option selected. The
MAX4995A/MAX4995AF/MAX4995AL go into an
autoretry mode, the MAX4995B latches off the switch,
and the MAX4995C places the device in a continuous
current-limit mode. Additional safety features include
thermal shutdown to prevent overheating and reverse-
current blocking to prevent current from being driven
back into the source.
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/
MAX4995C are available in a tiny 10-pin, 1.4mm x
1.8mm UTQFN, a 6-pin SOT23, or an 8-pin, 2mm x
2mm TDFN package and operate over the -40癈 to
+125癈 extended temperature range.
Features
f 50mA to 600mA Programmable Current Limit
f ?/SPAN>10% Accurate Current Limit
f Overload FLAG Threshold
f Low Dropout Voltage
f Short-Circuit Protection
f Thermal Shutdown
f Reverse-Current Protection
f 170?/SPAN>A (typ) Supply Current
f +1.7V to +5.5V Supply Voltage Range
f Tiny 10-Pin, 1.4mm x 1.8mm UTQFN Package
Applications
50mA to 600mA Programmable
Current-Limit Switches
________________________________________________________________ Maxim Integrated Products   1
Ordering Information/Selector Guide
19-4363; Rev 2; 2/10
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
All devices operate over the -40癈 to +125癈 temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*Future product. Contact factory for availability.
**EP = Exposed pad.
PART
PIN-PACKAGE
ON POLARITY
OVERCURRENT
RESPONSE
SHORT-CIRCUIT
RESPONSE
TOP MARK
MAX4995AAUT+T*     6 SOT23
Active-High
Autoretry
Normal
+ACNZ
MAX4995AAVB+T
10 UTQFN
Active-High
Autoretry
Normal
+AAM
MAX4995AATA+T
8 TDFN-EP**
Active-High
Autoretry
Normal
+ABL
MAX4995AFAUT+T*   6 SOT23
Active-High
Autoretry
Fast
+ACOE
MAX4995AFAVB+T     10 UTQFN
Active-High
Autoretry
Fast
+AAR
MAX4995AFATA+T*    8 TDFN-EP**
Active-High
Autoretry
Fast
+ACO
MAX4995ALAUT+T*   6 SOT23
Active-Low
Autoretry
Normal
+ACDA
MAX4995ALAVB+T     10 UTQFN
Active-Low
Autoretry
Normal
+AAN
MAX4995ALATA+T*    8 TDFN-EP**
Active-Low
Autoretry
Normal
+ABM
MAX4995BAUT+T*     6 SOT23
Active-High
Latchoff
Normal
+ACDB
MAX4995BAVB+T
10 UTQFN
Active-High
Latchoff
Normal
+AAO
MAX4995BATA+T*
8 TDFN-EP**
Active-High
Latchoff
Normal
+ABN
MAX4995CAUT+T*     6 SOT23
Active-High
Continuous
Normal
+ACOD
MAX4995CAVB+T
10 UTQFN
Active-High
Continuous
Normal
+AAQ
MAX4995CATA+T*
8 TDFN-EP**
Active-High
Continuous
Normal
+ABP
Typical Operating Circuit appears at end of data sheet.
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UTCA/ATCA Platforms