Features
- DLA SMD 5962-13220
- Input supply range 4.0V to 13.2V
- Output current up to 1.5A at TJ = +150°C
- Best-in-class accuracy ±1.5%
- Over line, load, and temperature
- Ultra-low dropout:
- 75mV dropout (typical) at 0.5A
- 225mV dropout (typical) at 1.5A
- Noise of 100µVRMS (typical) between 300Hz to 300kHz
- SET mitigation with no added filtering/diodes
- Shutdown current of 165µA (typical)
- Externally adjustable output voltage
- PSRR 65dB (typical) at 1kHz
- Enable (EN) and power-good (PG) feature
- Programmable soft-start/inrush current limiting
- Adjustable overcurrent protection
- Over-temperature shutdown
- Stable with 47µF minimum tantalum capacitor
- 16 Ld flatpack package
- Radiation environment
- High dose rate (50-300rad(Si)/s): 100krad(Si)
- Low dose rate (0.01rad(Si)/s): 50krad(Si)
- See TID report for further characterization details
- SET/SEL/SEB: 86MeV•cm2/mg
Description
The ISL75052SEH is a radiation hardened, single-output LDO specified for an output current of 1.5A. The device operates from an input voltage range of 4.0V to 13.2V and provides for output voltages of 0.6V to 12.7V. The output is adjustable based on a resistor divider setting. Dropout voltages as low as 75mV (at 0.5A) typical can be realized using the device. This allows you to improve the system efficiency by lowering VIN to nearly VOUT. The enable feature allows the part to be placed into a low shutdown current mode of 165µA (typical). When enabled, the device operates with a low ground current of 11mA (typical), which provides for operation with low quiescent power consumption. These devices have superior transient response and are designed keeping single-event effects in mind. This results in the reduction of the magnitude of SET seen on the output. There is no need for additional protection diodes and filters. A COMP pin is provided to enable the use of external compensation. This is achieved by connecting a resistor and a capacitor from COMP to ground. The device is stable with tantalum capacitors as low as 47µF (KEMET T525 series) and provides excellent regulation from no load to full load. The programmable soft-start allows you to program the inrush current by means of the decoupling capacitor used on the BYP pin. The Overcurrent Protection (OCP) pin allows the short-circuit output current limit threshold to be programmed by means of a resistor from the OCP pin to GND. The OCP setting range is from 0.16A minimum to 3.2A maximum. The resistor sets the constant current threshold for the output under fault conditions. The thermal shutdown disables the output if the device temperature exceeds the specified value. It subsequently enters an ON/OFF cycle until the fault is removed.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| IOUT (A) | 1.5 |
| Supply Voltage (min) (V) | 4 - 4 |
| Supply Voltage (max) (V) | 13.2 - 13.2 |
| Input Voltage (Min) (V) | 4 |
| Input Voltage (Max) (V) | 13.2 |
| VDO @ IOUTMAX (Typ) (mV) | 225 |
| VOUT (min) (V) | 0.6 |
| VOUT (max) (V) | 12.7 |
| Temp. Range (°C) | -55 to +125°C |
| TID HDR (krad(Si)) | 100 |
| TID LDR (krad(Si)) | 50 |
| DSEE (MeV·cm2/mg) | 86 |
| Flow | RH Hermetic |
| Qualification Level | Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
Applications
- LDO regulator for space power systems
- DSP, FPGA, and microprocessor core power supplies
- Post-regulation of SMPS and down-hole drilling
Renesas Boards & Kits
Radiation Hardened, 1.5A, Positive, High-Voltage LDO Evaluation Board
The ISL75052SEHEVAL1Z evaluation board provides a simple platform for evaluating the performance of the ISL75052SEH radiation hardened, high-performance, adjustable, low-voltage, high-current, low-dropout linear regulator (LDO) specified at a 1.5A rated output current for input voltages from... Read More
Support Communities
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ISL75052SEH Enable Pin Signal Edge Rate Requirements
Hello, What is the low to high and high to low edge rate requirement for the enable signal applied to the ENABLE pin for the subject part? I am trying to avoid part turn on/off chatter as the enable signal passes through the threshold region. Thank you. Mark ...
Jan 3, 2023 -
Vout equation for ISL75052SEH
Hello, Can you please provide the equation for the output voltage for the ISL75052SEH linear regulator? The equation does not seem to be listed in the datasheet, and the standard equation of: Vout = (1 + (Rh / Rl)) does not provide a result with sufficient accuracy for my application. Specifically, the ...
Nov 17, 2022 -
Failure Rate data of the ISL75052SEHVFE type LDO
Hi, We need the Failure Rate data of the ISL75052SEHVFE type LDO with the calculation method, temperature, environment information. Is it possible to get this information? I tried to use your "submit a ticket" application but it seems like it wasn't delivered. Thanks and Best regards, Ayten BUKE Component ...
Apr 18, 2024
Knowledge Base
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Can I use a smaller value of capacitance than the 200uF shown in the data sheet schematic for the ISL75052SEH circuit?
Question: Can I use a smaller value of capacitance? Answer: The usable ESR range for the capacitor in the ISL75052SEH circuit is 6mΩ to 100mΩ. So any capacitance with this ESR range will work. However, note that smaller capacitance means worse SET performance. We haves validated that 2x100uF, 60mΩ each ...
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How do I adjust the RC component values that are on the ADJ pin of the ISL75052SEH circuit?
Question: How do I adjust the RC component values that are on the ADJ pin? Answer: The RC network is there to speed up the response during transients and helps with overshoot recovery from a short circuit. 2.2k and 2.2nF will get about 3-4% overshoot during a ...
Support Communities
