Key Differences in Family
| Part Number | VOUT1 | VOUT2 | VOUT3 | VOUT4 |
|---|---|---|---|---|
| ISL91212AR5770 | MPIO <1:0>=<00> : 1V MPIO <1:0>=<01> : 0.95V MPIO <1:0>=<10> : 0.9V |
1.8V | 1.2V | N/A |
| ISL91212BR5771 | 1V | MPIO <1:0>=<00> : 1.5V MPIO <1:0>=<10> : 1.35V |
MPIO <1:0>=<00> : 0.75V MPIO <1:0>=<10> : 0.675V |
MPIO <1:0>=<00> : 0.75V MPIO <1:0>=<10> : 0.675V |
| ISL91212BR5769 | MPIO <1:0>=<00> : 1V MPIO <1:0>=<01> : 0.95V MPIO <1:0>=<10> : 0.9V |
MPIO 2=0 : 1V MPIO 2=1 : 0.95V |
1.8V | 1.2V |
| ISL91212BR5775 | MPIO <1:0>=<00> : 1V MPIO <1:0>=<01> : 0.95V MPIO <1:0>=<10> : 0.9V |
1V | 1.8V | 1.2V |
| ISL91212BR5772 | MPIO 0=0 : 1V MPIO 0=1 : 0.95V |
MPIO 1=0 : 1.5V MPIO 1=1 : 1.35V |
MPIO 1=0 : 0.75V MPIO 1=1 : 0.675V |
MPIO 1=0 : 0.75V MPIO 1=1 : 0.675V |
Key Features
- Triple output 2+1+1 phases (ISL91212AR5770) or quad output single phase (ISL91212BR5771, ISL91212BR5769, ISL91212BR5775, and ISL91212BR5772)
- 2.5V to 5.5V supply voltage
- 5A per phase output current capability
- Small solution size (7x10mm2 for four phase design)
- High efficiency (94.7% for 3.8VIN/1.8VOUT)
- Low IQ in low power mode
- Patented control scheme reduces output capacitor and supports fast load transient (such as 50A/μs/phase)
- ±0.7% system accuracy, remote voltage sensing
- Programmable PWM frequency from 2MHz to 6MHz
- I2C programmable output from 0.3V to 2V
- Independent Dynamic Voltage Scaling (DVS) for each output
- Soft-start and fault detection (UV, OV, OC, OT), short circuit protection
- 2.551x3.67mm 35 ball WLCSP with 0.5mm pin pitch
Description
The ISL91212AR5770 is a 4-phase, three output programmable Power Management IC (PMIC) and the ISL91212BR5771, ISL91212BR5769, ISL91212BR5775, and ISL91212BR5772 are 4-phase, four output programmable PMICs. They are optimized with highly efficient, synchronous buck converters capable of multiphase and single-phase operations that can deliver up to 5A per phase continuous output current. They feature four buck controllers and can reconfigure their power stages to these controllers. This flexibility allows seamless design-in for a wide range of applications requiring high output power and small solution size.
These ISL91212 PMICs integrate low ON-resistance MOSFETs and programmable PWM frequency, allowing the use of very small external inductors and capacitors. They feature automatic Diode Emulation and Pulse Skipping modes under light-load conditions to further improve efficiency and maximize battery life. These PMICs deliver highly robust power solutions by using a controller based on Intersil’s proprietary R5 Technology, which provides tight output accuracy and load regulation, ultra-fast transient response, seamless DCM/CCM transitions, and require no external compensation.
In addition to the standard interrupt, chip enable, and watchdog reset functions, these ISL91212 PMICs feature three MPIOs and two GPIOs capable of supporting I2C communication and various other pin mode functions.
Applications
- FPGA power
- Industrial MPU power, human machine interface
- Optical transceivers
- SSD
| Alternatives | |||||
|---|---|---|---|---|---|
| Parameters | ISL91212BR5769 | ISL91211 | ISL91212BR5771 | ISL91212BR5772 | |
| Topology | Buck | Buck | Buck | Buck | |
| # of Outputs | 4 | 4 | 4 | 4 | |
| VIN (min) (V) | 2.5 | 2.5 | 2.5 | 2.5 | |
| VIN (max) (V) | 5.5 | 5.5 | 5.5 | 5.5 | |
| VOUT (min) (V) | Fixed 0.9-1V, 0.95-1V, 1.8V, 1.2V | .3 | Fixed 1V, 1.35-1.5V, 0.675-0.75V, 0.675-0.75V | Fixed 0.95-1V, 1.35-1.5V, 0.675-0.75V, 0.675-0.75V | |
| VOUT (max) (V) | Fixed 0.9-1V, 0.95-1V, 1.8V, 1.2V | 1.2 | Fixed 1V, 1.35-1.5V, 0.675-0.75V, 0.675-0.75V | Fixed 0.95-1V, 1.35-1.5V, 0.675-0.75V, 0.675-0.75V | |
| IOUT (max) (A) | 20 (5,5,5,5) | 20 (5,5,5,5) or (10,5,5) | 20 (5,5,5,5) | 20 (5,5,5,5) | |
| IQ | 1 µA | 1 µA | 1 µA | 1 µA | |
| Switching Freq. (max) | 4 MHz | 4 MHz | 4 MHz | 4 MHz | |
| Switching Freq. (min) | 4 MHz | 4 MHz | 4 MHz | 4 MHz | |
| Qualification Level | Standard | Standard | Standard | Standard | |
| Peak Efficiency (%) | 94.7 | 90 | 94.7 | 94.7 | |
| POR | Yes | Yes | Yes | Yes | |
| SYNCH Capability | No | No | No | No | |
| Control Type | Current Mode | Current Mode | Current Mode | Current Mode | |
Application Notes |
|||||
|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| AN1681: Grounding Techniques Grounding Techniques 30 Jan 2018 496 KB | 30 Jan 2018 | 496 KB | |||
| AN1684: Nonideality of Ground Nonideality of Ground 30 Jan 2018 392 KB | 30 Jan 2018 | 392 KB | |||
Datasheets |
|||||
|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| ISL91212AR5770, ISL91212BR5771, ISL91212BR5769, ISL91212BR5775, ISL91212BR5772 Data Short Triple/Quad Output Power Management IC 06 Nov 2017 269 KB | 06 Nov 2017 | 269 KB | |||
Tech Briefs |
|||||
|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| TB501: Computing Power Regulator Layout Checklist Computing Power Regulator Layout Checklist 15 Mar 2018 355 KB | 15 Mar 2018 | 355 KB | |||
| TB500: Computing Power Reference Design Adaptation Guide Computing Power Reference Design Adaptation Guide 15 Mar 2018 336 KB | 15 Mar 2018 | 336 KB | |||
White Papers |
|||||
|---|---|---|---|---|---|
| Title | Type | Updated | Size | Other Languages | |
| Five Easy Steps to Create a Multi-Load Power Solution 30 Jan 2017 502 KB | 30 Jan 2017 | 502 KB | |||
Details
