ISL70001SRHF INTERSIL [Intersil Corporation], ISL70001SRHF Datasheet

ISL70001SRHF

Manufacturer Part Number

ISL70001SRHF

Description

Rad Hard and SEE Hard 6A Synchronous Buck Regulator

Manufacturer

INTERSIL [Intersil Corporation]

Datasheet

1.ISL70001SRHF.pdf (17 pages)

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Rad Hard and SEE Hard 6A Synchronous Buck Regulator

ISL70001SEH

The ISL70001SEH is a radiation hardened and SEE hardened

high efficiency monolithic synchronous buck regulator 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 T

High integration and class leading radiation tolerance makes

the ISL70001SEH an ideal choice 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.

Applications

• FPGA, CPLD, DSP, CPU Core or I/O Voltages

• Low-Voltage, High-Density Distributed Power Systems

Related Literature

• ISL70001SRHEVAL1Z Evaluation Board,

Specifications for Rad Hard QML devices are controlled by the

Defense Logistics Agency Land and Maritime (DLA). The SMD

numbers listed in the Ordering Information table on page 2 must

be used when ordering.

Detailed Electrical Specifications for these devices are contained

ISL70001SEH device information page

November 30, 2011

FN7956.0

SMD

5V SUPPLY

< +145°C

5962-09225. This link is also available on the

SYNCH

RAD HARD LDO

FIGURE 1. TYPICAL APPLICATION

ISL70001SEH

CORE

AUX

I/O

on the Intersil web site.

AN1518

RAD TOLERANT

FPGA

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

Features

• ±1% Reference Voltage Over Line, Load, Temperature and

• Current Mode Control for Excellent Dynamic Response

• Full Mil-Temp Range Operation (T

• High Efficiency > 90%

• Fixed 1MHz Operating Frequency

• Operates from 3V to 5.5V Supply

• Adjustable Output Voltage

• Bi-directional SYNC Pin Allows Two Devices to be Synchronized

• Device Enable with Comparator Type Input

• Power-Good Output Voltage Monitor

• Adjustable Analog Soft-Start

• Input Undervoltage, Output Undervoltage and Output

• Starts Into Pre-Biased Load

• Electrically Screened to DLA SMD 5962-09225

• QML Qualified per MIL-PRF-38535 Requirements

• Radiation Hardness

• SEE Hardness

Radiation

- Two External Resistors Set V

180

Overcurrent Protection

- Total Dose [50-300rad(Si)/s] . . . . . . . . . . .100krad(Si) min

- Total Dose [<10mrad(Si)/s] . . . . . . . . . . . . .50krad(Si) min

- SEL and SEB LET

- SEFI X-section (LET

- SET LET

FIGURE 2. EFFICIENCY 5V INPUT TO 3.3V OUTPUT, T

max

All other trademarks mentioned are the property of their respective owners.

Out-of-Phase

eff

(< 1 Pulse Perturbation) 86.4MeV/mg/cm

eff

. . . . . . . . . . . . 86.4MeV/mg/cm

= 86.4MeV/mg/cm

LOAD CURRENT (A)

OUT

from 0.8V to ~85% of V

= -55°C to +125°C)

) 1.4 x 10

= +25°C

-6

min

Related parts for ISL70001SRHF

ISL70001SRHF Summary of contents

Page 1

Rad Hard and SEE Hard 6A Synchronous Buck Regulator ISL70001SEH The ISL70001SEH is a radiation hardened and SEE hardened high efficiency monolithic synchronous buck regulator with integrated MOSFETs. This single chip power solution operates over an input voltage range of ...

Page 2

... TB363. 2 ISL70001SEH POWER-ON RESET (POR) SLOPE COMPENSATION PWM CONTROL EA GM LOGIC COMPENSATION UV POWER-GOOD PART NUMBER (Note 2) ISL70001SEHVF (Note 1) ISL70001SEHVX ISL70001SRHF/PROTO (Note 1) ISL70001SRHX/SAMPLE Evaluation Board PVINx CURRENT SENSE GATE LXx DRIVE PGNDx TDI BIT TDO TRIM ZAP TRIM TEMP. RANGE (°C) PACKAGE ...

Page 3

Pin Configuration M/S ZAP TDI TDO PGOOD SS DVDD DVDD DGND DGND AGND AGND Pin Descriptions PIN NUMBER PIN NAME 1, 2, 27, 28, 29, 30, PGNDx These pins are the power grounds associated with the corresponding internal power blocks. ...

Page 4

Pin Descriptions (Continued) PIN NUMBER PIN NAME 12 SS This pin is the soft-start input. Connect a ceramic capacitor from this pin to DGND to set the soft-start output ramp time in accordance with Equation where: t ...

Page 5

Typical Application Schematic PVIN1 5V PVIN2 100µF 1µF PVIN3 PVIN4 PVIN5 1µF PVIN6 1 AVDD 1µF AGND 1 DVDD 1µF VSENSE DGND EN 10nF M/S PORSEL TDI TDO ZAP FIGURE 3. 5V INPUT SUPPLY VOLTAGE WITH MASTER MODE SYNCHRONIZATION 5 ...

Page 6

Typical Application Schematic PVIN1 3.3V PVIN2 100µF 1µF PVIN3 PVIN4 PVIN5 1µF PVIN6 1 DVDD 1µF DGND 1 AVDD 1µF VSENSE AGND EN M/S 10nF PORSEL TDI TDO ZAP FIGURE 4. 3.3V INPUT SUPPLY VOLTAGE WITH SLAVE MODE SYNCHRONIZATION 6 ...

Page 7

Electrical Specifications Unless otherwise noted, VIN = AVDD = DVDD = PVINx = 5.5V; GND = AGND = DGND = PGNDx = TDI = TDO = ZAP = 0V 0.65V; PORSEL = ...

Page 8

Electrical Specifications Unless otherwise noted, VIN = AVDD = DVDD = PVINx = 5.5V; GND = AGND = DGND = PGNDx = TDI = TDO = ZAP = 0V 0.65V; PORSEL = ...

Page 9

Functional Description The ISL70001SEH is a monolithic, fixed frequency, current-mode synchronous buck regulator with user configurable power blocks. Two ISL70001SEH devices can be used to provide a total DC/DC solution for FPGAs, CPLDs, DSPs and CPUs. The ISL70001SEH utilizes peak ...

Page 10

To run the regulator from the internal oscillator, connect the M/S pin to DVDD. In this case, the output of the internal oscillator appears on the SYNC pin. To synchronize the regulator to the SYNC output of another ISL70001SEH regulator ...

Page 11

The soft-start capacitor is charged by an internal I source. As the soft-start capacitor is charged, the output voltage slowly ramps to the set point determined by the reference voltage and the feedback network. Once the voltage on the SS ...

Page 12

R is load resistance and C is the output load O OUT capacitance. For this type of modulator, a Type 2 compensation circuit is usually sufficient. Figure 9 shows a Type 2 amplifier and its response, along with the ...

Page 13

Another stability requirement on the selection of the output capacitor is that the ‘ESR zero’ placed at 60kHz to ZESR 90kHz. This range is set by an internal, single compensation zero at 8.6kHz. This ESR zero location ...

Page 14

PCB Design PCB design is critical to high-frequency switching regulator performance. Careful component placement and trace routing are necessary to reduce voltage spikes and minimize undesirable voltage drops. Selection of a suitable thermal interface material is also required for optimum ...

Page 15

Die Characteristics Die Dimensions 5720µm x 5830µm (225.2 mils x 229.5 mils) Thickness: 483µm ± 25.4µm (19.0 mils ± 1 mil) Interface Materials GLASSIVATION Type: Silicon Oxide and Silicon Nitride Thickness: 0.3µm ± 0.03µm to 1.2µm ± 0.12µm TOP METALLIZATION ...

Page 16

PAD NAME PAD NUMBER AVDD 15 REF PORSEL 19 PVIN6 20 LX6 21 PGND6 22 PGND5 23 LX5 24 PVIN5 25 PVIN4 26 LX4 27 PGND4 28 PGND3 29 LX3 30 PVIN3 31 PVIN2 32 ...

Page 17

Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest Rev. DATE REVISION November 30, 2011 FN7956.0 Initial Release ...

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