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參數資料
| 型號： | 5962R0922501QXC |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, CQFP48 |
| 封裝： | ROHS COMPLIANT, CQFP-48 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 592K |
| 代理商： | 5962R0922501QXC |
1
Radiation Hardened and SEE Hardened 6A
Synchronous Buck Regulator with Integrated MOSFETs
ISL70001SRH
The ISL70001SRH 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 TJ < +145°C.
The ISL70001SRH utilizes peak current-mode control with
integrated compensation and switches at a fixed frequency of
1MHz. Two ISL70001SRH devices can be synchronized 180°
out-of-phase to reduce input RMS ripple current. These attributes
reduce the number and size of external components required,
while providing excellent output transient response. The
internal synchronous power switches are optimized for high
efficiency and good thermal performance.
The chip features a comparator type enable input that provides
flexibility. It can be used for simple digital on/off control or,
alternately, can provide undervoltage lockout capability by
using two external resistors to precisely sense the level of an
external supply voltage. A power-good signal indicates when the
output voltage is within ±11% typical of the nominal output
voltage.
Regulator start-up is controlled by an analog soft-start circuit,
which can be adjusted from approximately 2ms to 200ms by
using an external capacitor.
The ISL70001SRH incorporates fault protection for the
regulator. The protection circuits include input undervoltage,
output undervoltage, and output overcurrent.
High integration makes the ISL70001SRH 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.
Specifications for Rad Hard QML devices are controlled by the
Defense Supply Center in Columbus (DSCC). The SMD numbers
listed in the Ordering Information table on page 2 must be used
when ordering.
in SMD 5962-09225. This link is also available on the
ISL70001SRH device information page on the Intersil web site.
Features
Electrically Screened to DSCC SMD 5962-09225
QML Qualified per MIL-PRF-38535 Requirements
Full Mil-Temp Range Operation (TA = -55°C to +125°C)
Radiation Hardness
- Total Dose [50-300rad(Si)/s] . . . . . . . . . . .100krad(Si) min
SEE Hardness
- SEL and SEB LETeff . . . . . . . . . . . . 86.4MeV/mg/cm2 min
-SEFI X-section (LETeff = 86.4MeV/mg/cm2) 1.4 x 10-6 cm2
max
-SET LETeff (< 1 Pulse Perturbation) 86.4MeV/mg/cm2 min
High Efficiency > 90%
Fixed 1MHz Operating Frequency
Operates from 3V to 5.5V Supply
±1% Reference Voltage over Line, Load, Temperature and
Radiation
Adjustable Output Voltage
- Two External Resistors Set VOUT from 0.8V to ~85% of VIN
Excellent Dynamic Response
Bi-directional SYNC Pin Allows Two Devices to be Synchronized
180° Out-of-Phase
Device Enable with Comparator Type Input
Power-Good Output Voltage Monitor
Adjustable Analog Soft-Start
Input Undervoltage, Output Undervoltage and Output
Overcurrent Protection
Starts Into Pre-Biased Load
Applications
FPGA, CPLD, DSP, CPU Core or I/O Voltages
Low-Voltage, High-Density Distributed Power Systems
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|Copyright Intersil Americas Inc. 2009, 2011. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
May 23, 2011
FN6947.1
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