IR HiRel Product Families



AFL DC-DC converter with 270 Vin 28 Vout single output, 112W



Input-Output isolation

Fixed switching frequency

Common frequency synchronization

Soft start

Short-circuit and overload protection

Input undervoltage lockout

Duty cycle limiting over-voltage protection

Output turn-on/turn off sequencing

Operation over -55°C to +125°C without de-rating

Magnetically-coupled feedback

TTL-compatible on/off command

Low profile, hermetically-sealed packages

Copper I/O pins

Reliability screening option


Total Output Power (W)112W
Input Voltage Min (V)160
Input Voltage Max (V)400
Output Voltage Single (V)+ 28
DLA QualifiedSMD
Qual LevelStandard
DLA Drawing5962-95565
Base Part StatusActive
Typical Efficiency (%)85
IOUT Single (A)+ 4

Aerospace and Defense

IR's standard and custom power management solutions for commercial aircraft and defense applications are used in programs such as Airbus and Boeing airliners, the F16, the Eurofighter, the F35 Joint Strike Fighter and the Abrams M1A2 tank.

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IR has a long history of providing high-reliability, radiation hardened power management solutions for space flight with products used in over 2000 space programs from launchers to satellites to space exploration vehicles.

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Part # AFL27028S

AFL DC-DC converter with 270 Vin 28 Vout single output, 112W

DescriptionPart NumberStatusStandard Pack Quantity
Case X, CH level screeningAFL27025SX/CHBPRELIMINARY1
Case Y, ES level screeningAFL27028SY/ESOBSOLETE1
Case Y, CH level screeningAFL27028SY/CHBACTIVE1
Case W, ES level screeningAFL27028SW/ESBACTIVE1
SMD Class H Qualified5962-95565LAST_TIME_BUY_EXPIRED1
Case X, ES level screeningAFL27028SX/ESBACTIVE1
Case Z, CH level screeningAFL27028SZ/CHOBSOLETE1
Case X, CH level screeningAFL27028SX/CHBPRELIMINARY1
Case W, CH level screeningAFL27028SW/CHBPRELIMINARY1
Case Z, ES level screeningAFL27028SZ/ESOBSOLETE1
Case Y, ES level screeningAFL27028SY/ESBACTIVE1
Case Z, ES level screeningAFL27028SZ/ESBACTIVE1

Package Support