ISL6532BCRZ Intersil, ISL6532BCRZ Datasheet
ISL6532BCRZ
Specifications of ISL6532BCRZ
Related parts for ISL6532BCRZ
ISL6532BCRZ Summary of contents
Page 1
... NCH 15 PART NUMBER 14 PGOOD ISL6532BCR 13 GND ISL6532BCRZ COMP 12 (See Note *Add “-T” suffix to part number for tape and reel packaging. NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which is compatible with both SnPb and Pb-free soldering operations ...
Page 2
Block Diagram P3V3SBY VDDQ S3 REGULATOR VDDQ(2) VTTSNS VTT REG VTT(2) DISABLE { R U VREF_IN { R L UV/OV VREF_OUT SLP_S3# SLP_S5# 5VSBY VOLTAGE REFERENCE 0.800V 0.680V (-15%) 0.920V (+15%) 5V POR S3 SLEEP, SOFT-START, PGOOD, AND FAULT PWM ...
Page 3
Simplified Power System Diagram SLP_S3 SLP_S5 5VSBY/3V3SBY Typical Application - 5V or 3.3V Input +3.3V PGOOD V DDQ SLP_S3 SLP_S5 V REF VTT 3 ISL6532B 12V 5VSBY SLEEP STATE LOGIC PWM CONTROLLER STANDBY LDO ISL6532B VTT ...
Page 4
Typical Application - Input From 5V Dual +3.3V PGOOD V DDQ SLP_S3 SLP_S5 V REF VTT 4 ISL6532B 5VSBY +12V C BP S3# NCH S5# VREF_OUT VREF_IN UGATE C SS ISL6532B LGATE VTT VDDQ VTT VDDQ ...
Page 5
Absolute Maximum Ratings 5VSBY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V ...
Page 6
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System Diagrams and Typical Application Schematics (Continued) PARAMETER PWM CONTROLLER GATE DRIVERS UGATE and LGATE Source UGATE and LGATE Sink NCH BACKFEED CONTROL NCH Current Sink ...
Page 7
LGATE (Pin 19) LGATE drives the lower (synchronous) FET of the V synchronous buck switching regulator. LGATE is driven between GND and P12V. FB (Pin 11) and COMP (Pin 12) The V switching regulator employs a single voltage DDQ control ...
Page 8
ACPI State Transitions Cold Start (S5/ Transition) At the onset of a mechanical start, the ISL6532B receives it’s bias voltage from the 5V Standby bus (5VSBY). As soon as the SLP_S3 and SLP_S5 signals have transitioned HIGH, the ...
Page 9
S3 S5 12VATX 2V/DIV 2048 CLOCK CYCLES 12V POR PGOOD COMPARATOR FIGURE 2. TYPICAL STATE TRANSITION V Over Current Protection TT The internal V LDO is protected from fault conditions TT through a 3.3A current limit. This ...
Page 10
Careful component layout and printed circuit board design minimizes these voltage spikes example, consider the turn-off transition of the upper MOSFET. Prior to ...
Page 11
DRIVER OSC PWM COMPARATOR - DRIVER ∆V + OSC E REFERENCE ERROR AMP DETAILED COMPENSATION COMPONENTS COMP ISL6532B REFERENCE ...
Page 12
However, since the value of R1 affects the values of the rest of the compensation components advisable to keep its value less than 5kΩ. Depending on the value chosen for R1, R4 can be calculated based on the ...
Page 13
The important parameters for the bulk input capacitance are the voltage rating and the RMS current rating. For reliable operation, select bulk capacitors with voltage and current ratings above the maximum input voltage and largest RMS current required by the ...
Page 14
ISL6532B Application Circuit Figure 7 shows an application circuit utilizing the ISL6532B. Detailed information on the circuit, including a complete Bill- +3. 10.0kΩ PGOOD DDQ REF 0.1µ 0.1µ ...
Page 15
... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...