ISL6722A and ISL6723A are low power, single-ended pulse-width modulation (PWM) current mode controllers suitable for a wide variety of DC/DC conversion applications including step-up regulators, buck regulators, and isolated output configurations. Similar to the ISL6721 and pin-compatible, ISL6722A and ISL6723A offer a modified feature set. ISL6722A replaces the original external synchronization function with a low-power halt feature that can reduce standby current below 200µA. ISL6723A changes the input voltage undervoltage threshold to 13V. In addition, internal overtemperature protection has been eliminated for both controllers. The remainder of the controller’s functionality is unchanged and includes a low-power mode that includes current limit and overvoltage fault protection when the input current is below 200µA. An internal 300ms delay clock prevents rapid “hiccups” in the controller’s operation when a fault occurs.
The ISL6722A and ISL6723A are low‑power, single‑ended PWM current‑mode controllers designed for a variety of DC/DC converter topologies, including boost regulators, feedback converters, and isolated output configurations. Both devices are pin‑compatible with the ISL6721 and add features such as a low‑power standby mode (ISL6722A) and an adjusted undervoltage lockout (ISL6723A).
The datasheet provides detailed electrical specifications, recommended operating conditions, typical application circuits, package dimensions, and a full component list. It also includes mechanical drawings for the SOIC and TSSOP packages and notes on RoHS‑compliant, lead‑free manufacturing. This manual is written in Chinese.
| Supply Voltage Range | 9 V – 20 V |
|---|---|
| Operating Temperature Range | -40 °C – 105 °C |
| Peak Gate Current | 1 A |
| Oscillator Frequency (adjustable) | up to 1 MHz |
| Standby (Sleep) Current (ISL6722A) | < 200 µA |
| Undervoltage Fault Threshold | 1.38 V – 1.52 V |
The ISL6722A standby (sleep) current is less than 200 µA.
The ISL6723A undervoltage fault threshold is between 1.38 V and 1.52 V.
Both devices are available in 16‑lead SOIC and 16‑lead TSSOP (Pb‑free) packages.