PE99155 Datasheet | pSemi

Product Description The PE99155 is a radiation tolerant point-of-load buck regulator delivering high efficiency at VIN = 5V and output currents up to 10A continuous. This single-chip solution is perfect for Hi-Rel applications and delivers peak efficiency exceeding 93%. A minimal external ponent count and high switching frequency enables >10 W/in2 standard PCB designs while high efficiency minimizes thermal concerns. All power switching devices are integrated on-chip. Fabricated in Peregrine’s patented Ultra CMOS® technology, the PE99155 offers excellent power efficiency and intrinsic radiation tolerance. Table 1. Radiation Performance TID 100 k Rad(Si) SEL > 90 Me V- cm2/mg > 90 Me V- cm2/mg > 90 Me V- cm2/mg SEFI SEGR > 90 Me V- cm2/mg > 90 Me V- cm2/mg SEL, SEB, SEGR, SEU, SEFI: None observed, Au/60 degrees SET: No events exceeding 30 m V transient observed @ Au, LET=90, 60 degrees and normal incidence. Figure 1. Typical Application Diagram Product Specification Hi-Rel 10A DC-DC Converter Radiation Tolerant Ultra CMOS® Monolithic Point-of-Load Synchronous Buck Regulator with Integrated Switches Features -  Up to 10A continuous -  Output voltage range from 1.0V to 3.6V by external select resistors -  Input voltage range 4.6V- 6.0V -  Current mode control, pulse-by-pulse current limit, current sharing enabled and (N+K) redundancy patible shutdown mode -  SYNC function, 100 k Hz to 5 MHz lock range with selectable 500 k Hz / 1 MHz free running frequency -  Shutdown pin, power good output pin for supply sequencing -  Better than 1% typical initial accuracy (+25 °C) -  Control inputs patible with TTL, LVTTL, LVCMOS (2.5V and 3.3V) and 5V CMOS -  Available in ceramic hermetic packaging and in die form Figure 2. Package Type 32-lead CQFP Document No. DOC-29514-6 │ .e2v-us. ©2011- 2015 Peregrine Semiconductor Corp. All rights reserved. Page 1 of 15 Product Specification Table 2. Electrical Specifications Case Temp (TC)...