MAX14575A/MAX14575AL/
MAX14575B/MAX14575C
250mAto2.5AAdjustableCurrent-LimitSwitches
General Description
Features
S Adjustable Current Limit (250mA to 2500mA)
The MAX14575A/MAX14575AL/MAX14575B/MAX14575C
programmable current-limit switches feature internal
current limiting to prevent damage to host devices due
to faulty load conditions. These current-limit switches
feature a low 32mI(typ) on-resistance and operate from
a +2.3V to +5.5V input voltage range. The current limit
is adjustable from 250mA to 2.5A, making these devices
ideal for charging a large load capacitor as well as for
high-current load switching applications.
S Accurate ±±0ꢀ ꢁOerload Current Limit (500mA to
2.5A)
S 32mI (typ) Low R
ꢁN
S +2.3V to +5.5V Supply Voltage Range
S ReOerse Current Protection
S Short-Circuit Protection
Each device in the family handles an overcurrent event
differently depending on the option selected. The
MAX14575A/MAX14575AL feature an autoretry mode,
the MAX14575A has active high, and the MAX14575AL
has active-low EN polarity. The MAX14575B has latch-
off mode, and the MAX14575C features a continuous
current-limit mode. Additional safety features include
thermal shutdown protection to prevent overheating and
reverse current blocking to prevent current from being
driven back into the source (see the Selector Guide).
S Thermal Shutdown Protection
S ±30µA (typ) Low Supply Current
S ±µA (max) Shutdown ReOerse Current
S Small, 8-Pin, 2mm x 2mm TDFN Package
Applications
RF Power Amplifier in
Cell Phones
Portable Media Players
UTCA/ATCA Platforms
The MAX14575A/MAX14575AL/MAX14575B/MAX14575C
are available in a small 8-pin, 2mm x 2mm TDFN pack-
age and operate over the -40NC to +85NC extended
temperature range.
USB Ports
SDXC Card Power-Supply
Protection
Data Modem Cards
Ordering Information/Selector Guide
ꢁVERCURRENT
RESPꢁNSE
PART
PIN-PACKAGE
TEMP RANGE
EN PꢁLARITY
TꢁP MARK
MAX±4575AETA+T
MAX±4575ALETA+T
MAX±4575BETA+T
MAX±4575CETA+T
8 TDFN-EP*
8 TDFN-EP*
8 TDFN-EP*
8 TDFN-EP*
Active-High
Active-Low
Active-High
Active-High
Autoretry
BMV
BMW
BMX
BMY
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Autoretry
Latch-off
Continuous
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*EP = Exposed pad.
Typical Operating Circuit
MAX14575A/MAX14575AL*
MAX14575B/MAX14575C
BIAS
VOLTAGE
IN
OUT
POWER
SUPPLY
LOAD
1µF
1µF
CHARGE
PUMP
SETI
V
PULLUP
CURRENT
REFERENCE
CONTROL
LOGIC
µP
R
SETI
10kΩ
FLAG
EN(EN)*
GND
*() FOR THE MAX14575AL ONLY
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-6458; Rev 0; 9/12