Package Information
| Lead Count (#) | 48 |
| Pkg. Type | CQFP |
| Pkg. Code | RKU |
| Pitch (mm) | 1.02 |
| Pkg. Dimensions (mm) | 14.22 x 14.22 x 2.21 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | Not Applicable |
| Pb (Lead) Free | Exempt |
| ECCN (US) | 9A515 |
| HTS (US) |
Product Attributes
| Pkg. Type | CQFP |
| Lead Count (#) | 48 |
| Carrier Type | Tray |
| Moisture Sensitivity Level (MSL) | Not Applicable |
| Qualification Level | EM |
| Pb (Lead) Free | Exempt |
| Pb Free Category | Gold Plate over compliant Undercoat-e4 |
| MOQ | 1 |
| Temp. Range | -55 to +125°C |
| CAGE code | 34371 |
| Control Mode | Peak Current Mode |
| Control Type | Current Mode |
| DSEE (MeV·cm2/mg) | 86.4 |
| Die Sale Availability? | Yes |
| Duty Cycle (%) | 90 - 90 |
| Flow | RH Hermetic |
| IOUT Rail 1 (max) (A) | 6 |
| IQ [Rail 1] (µA) | 2000 |
| Input Voltage (Max) [Rail 1] (V) | 5.50 - 5.50 |
| Input Voltage (Min) [Rail 1] (V) | 3 |
| Length (mm) | 14.2 |
| No-Load Operating Current | 40 |
| Output Current (Max) [Rail 1] (A) | 6 |
| Output Voltage (Max) [Rail 1] (V) | 4.675 |
| Output Voltage (Min) (V) | 0.6 |
| Output Voltage (Min) [Rail 1] (V) | 0.6 |
| Outputs (#) | 1 |
| POR | Yes |
| PROTO Availability? | Yes |
| Peak Efficiency (%) | 94 |
| Pitch (mm) | 1 |
| Pkg. Dimensions (mm) | 14.2 x 14.2 x 2.21 |
| Quiescent Current | 2mA |
| Rating | Space |
| SYNCH Capability | Yes |
| Supply Voltage Rail 1 (max) (V) | 5.5 |
| Supply Voltage Rail 1 (min) (V) | 3 |
| Switching Frequency (MHz) | 1 - 1 |
| Switching Frequency (max) (kHz) | 1000 |
| Switching Frequency (min) (kHz) | 1000 |
| TID HDR (krad(Si)) | 100 |
| Thickness (mm) | 2.21 |
| Topology [Rail 1] | Buck |
| VOUT Rail 1 (max) (V) | 4.675 |
| VOUT Rail 1 (min) (V) | 0.6 |
| Width (mm) | 14.2 |
Description
The ISL70001SEH, ISL70001SRH are radiation hardened and SEE hardened high efficiency monolithic synchronous buck regulators with integrated MOSFETs. This single-chip power solution operates over an input voltage range of 3V to 5.5V and provides a tightly regulated output voltage that is externally adjustable from 0.8V to ~85% of the input voltage. Output load current capacity is 6A for TJ < +145 °C. High integration and class-leading radiation tolerance make the ISL70001SEH, ISL70001SRH ideal choices to power many of today’s small form factor applications. Two devices can be synchronized to provide a complete power solution for large-scale digital ICs, like field-programmable gate arrays (FPGAs) that require separate core and I/O voltages. In applications where the ENABLE input is tied high to PVIN we recommend that the input voltage ramp rate be equal to or greater than 10V/ms. This is to prevent unwanted voltage from prematurely appearing on the output. For a PVIN voltage that has a slower ramp rate or is stepped up we recommend the use of the ISL70001ASEH. Ensuring that the ENABLE input is held low until the chosen VINPOR is satisfied will prevent this ‘false start’.