DATASHEET
ISL6722A, ISL6723A
Flexible Single Ended Current Mode PWM Controllers
The ISL6722A and the ISL6723A are low power,
single-ended pulse width modulating (PWM) current mode
controllers designed for a wide range of DC/DC conversion
applications including boost, flyback, and isolated output
configurations. Similar to, and pin compatible with the
ISL6721, the ISL6722A and ISL6723A offer a modified
feature set. The ISL6722A replaces external synchronization
with a low power SLEEP feature that reduces standby
current to under 200µA. The ISL6723A changes the supply
voltage UVLO threshold to 13V. Additionally, the internal
over temperature protection has been removed in both
controllers. Other features remain the same and include a
low power mode during overvoltage and overcurrent
shutdown faults where the supply current drops to 200µA.
An internal 300ms delay timer prevents rapid “hiccup”
behavior when a shutdown fault does occur.
This advanced BiCMOS design features low operating
current, adjustable operating frequency up to 1MHz, and
adjustable soft-start.
FN9237
Rev 2.00
September 29, 2015
Pinouts
ISL6722A, ISL6723A (16 LD SOIC, TSSOP)
GATE 1
ISENSE 2
SYNC/SLEEP 3
SLOPE 4
UV 5
OV 6
RTCT 7
ISET 8
16 VC
15 PGND
14 VCC
13 VREF
12 LGND
11 SS
10 COMP
9 FB
ISL6722A (16 LD QFN)
ISENSE
PGND
13
12 VCC
11 VREF
10 LGND
9
5
RTCT
6
ISET
7
FB
8
COMP
SS
GATE
15
16
SYNC/SLEEP 1
SLOPE 2
UV 3
OV 4
Applications
• Telecom and Datacom Power
• Wireless Base Station Power
• File Server Power
• Industrial Power Systems
• Isolated Buck and Flyback Regulators
• Boost Regulators
Features
• 1A MOSFET Gate Driver
• 100µA Start-up Current
• Fast Transient Response with Peak Current Mode Control
• Adjustable Switching Frequency up to 1MHz
• Low Power Sleep Mode (ISL6722A)
• Low Power Shutdown Mode
• Delayed Restart from OV and OC Shutdown Faults
• Adjustable Slope Compensation
• Adjustable Soft-Start
• Adjustable Overcurrent Shutdown Delay
• Adjustable UV and OV Monitors
• Leading Edge Blanking
• 1% Tolerance Voltage Reference
• Pb-Free Plus Anneal Available (RoHS Compliant)
FN9237 Rev 2.00
September 29, 2015
VC
14
Page 1 of 26
ISL6722A, ISL6723A
Ordering Information
PART NUMBER*
(Note)
ISL6722AABZ
ISL6723AABZ
(No longer available or supported)
ISL6722AAVZ
ISL6722AARZ
PART
MARKING
6722AABZ
6723AABZ
6722AAVZ
22AZ
TEMP.
RANGE (°C)
-40 to +105
-40 to +105
-40 to +105
-40 to +105
PACKAGE
(RoHS Compliant)
16 Ld SOIC
16 Ld SOIC
16 Ld TSSOP
16 Ld QFN
PKG. DWG. #
M16.15
M16.15
M16.173
L16.3x3B
*Add “-T” suffix to part number for tape and reel packaging.
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
FN9237 Rev 2.00
September 29, 2015
Page 2 of 26
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