Description:The ISL6537A provides a complete ACPI compliant power solution for up to 4 DIMM dual channel DDR/DDR2 Memory systems. Included are both a synchronous buck controller to supply VDDQ during S0/S1 and S3 states. During S0/S1 state, a fully integrated sink-source regulator generates an accurate (VDDQ/2) high current VTT voltage without the need for a negative supply. A buffered version of the VDDQ/2 reference is provided as VREF. A second PWM controller, which requires external MOSFET drivers, is available for
6 X 6 MM, ROHS COMPLIANT, PLASTIC, MO-220VJJC, QFN-28
Pin Count:
28
Manufacturer Package Code:
L28.6X6
ECCN Code:
EAR99
HTS Code:
8542.39.00.60
Factory Lead Time:
18 Weeks
Manufacturer:
Renesas Electronics Corporation
YTEOL:
0
Analog IC - Other Type:
DUAL SWITCHING CONTROLLER
Control Mode:
VOLTAGE-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
5.5 V
Input Voltage-Min:
4.5 V
Input Voltage-Nom:
5 V
JESD-30 Code:
S-PQCC-N28
JESD-609 Code:
e3
Length:
6 mm
Moisture Sensitivity Level:
3
Number of Functions:
1
Number of Terminals:
28
Operating Temperature-Max:
70 °C
Output Current-Max:
3.3 A
Package Body Material:
PLASTIC/EPOXY
Package Code:
HVQCCN
Package Shape:
SQUARE
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1 mm
Supply Current-Max (Isup):
8 mA
Surface Mount:
YES
Switcher Configuration:
PUSH-PULL
Switching Frequency-Max:
280 kHz
Temperature Grade:
COMMERCIAL
Terminal Finish:
MATTE TIN
Terminal Form:
NO LEAD
Terminal Pitch:
0.65 mm
Terminal Position:
QUAD
Time@Peak Reflow Temperature-Max (s):
30
Width:
6 mm
ISL6537ACRZ-T Frequently Asked Questions (FAQs)
A good PCB layout for the ISL6537ACRZ-T involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
The choice of input and output capacitors for the ISL6537ACRZ-T depends on the specific application requirements. In general, X5R or X7R ceramic capacitors with a voltage rating of 10V or higher are recommended for the input capacitor, while a 22μF to 47μF ceramic capacitor is suitable for the output capacitor.
The ISL6537ACRZ-T has an operating ambient temperature range of -40°C to +85°C, but the maximum junction temperature is 125°C. It's essential to ensure that the device does not exceed the maximum junction temperature to prevent damage or malfunction.
The ISL6537ACRZ-T has a built-in overcurrent protection feature that can be enabled by connecting a resistor between the OCSET pin and the GND pin. The value of the resistor determines the overcurrent threshold. A lower resistor value sets a higher overcurrent threshold, while a higher resistor value sets a lower overcurrent threshold.
Yes, the ISL6537ACRZ-T is suitable for high-reliability and automotive applications. It meets the requirements of the AEC-Q100 standard for automotive-grade devices and has a high MTBF (mean time between failures) rating.
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ISL6537ACRZ-T Overview
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