ISL6443A Datasheet, PDF (7/19 Pages) Intersil Corporation – 300kHz Dual, 180° Out-of-Phase, Step-Down PWM and Single Linear Controller

ISL6443A
Electrical Specifications
Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical
Application Schematic” on page 4. V_IN = 5.6V to 24V, or VCC_5V = 5V ±10%, T_A = -40°C to +85°C (Note 6),
Typical values are at T_A = +25°C. (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SOFT-START
Soft-Start Current
-
5
-
μA
PROTECTION
Thermal Shutdown
Rising
-
150
-
°C
Hysteresis
-
20
-
°C
NOTES:
3. In normal operation, where the device is supplied with voltage on the V_IN pin, the VCC_5V pin provides a 5V output capable of 60mA (min).
When the VCC_5V pin is used as a 5V supply input, the internal LDO regulator is disabled and the V_IN input pin must be connected to the
VCC_5V pin. (Refer to “Pin Descriptions” on page 10 for more details.)
4. This is the total shutdown current with V_IN = VCC_5V = PVCC = 5V.
5. Operating current is the supply current consumed when the device is active but not switching. It does not include gate drive current.
6. Limits should be considered typical and are not production tested.
7. Established by characterization. The full scale current of 32µA is recommended for optimum current sample and hold operation. See “Feedback
Loop Compensation” on page 13.
7
FN6600.1
December 7, 2007