1 Features
• Radiation performance:
– Radiation hardness assured (RHA) up to
TID 100krad(Si)
– SEL, SEB, and SEGR immune to
LET = 75MeV-cm2/mg
– SET and SEFI characterized up to
LET = 75MeV-cm2/mg
– No cross-conduction events for controller
outputs observed during SET characterization
• Input voltage: 4V to 14V
• 0.613V +0.7%/–1% voltage reference over
temperature, radiation, and line and load
regulation
• Switching frequency from 100kHz to 2MHz
• External clock synchronization capability
• Synchronous rectification outputs
– TPS7H5001-SP, TPS7H5002-SP,
TPS7H5003-SP
• Adjustable dead time
– TPS7H5001-SP, TPS7H5002-SP
• Adjustable leading edge blank time
– TPS7H5001-SP, TPS7H5002-SP,
TPS7H5004-SP
• Configurable duty cycle limit
– TPS7H5001-SP, TPS7H5002-SP,
TPS7H5003-SP
• Adjustable slope compensation and soft start
• Package options include CFP and TSSOP

2 Applications
• Space satellite point of load supply for FPGAs,
microcontrollers, data converters, and ASICs
• Communications payload
• Command and data handling
• Satellite electrical power system

3 Description
The TPS7H500x-SP family of high speed radiationhardness-
assured PWM controllers. The controllers
provide a number of features that are beneficial for
the design of DC-DC converter topologies intended
for space applications. The controllers have a
0.613V +0.7%/–1% accurate internal reference and
configurable switching frequency up to 2MHz. Each
device offers programmable slope compensation and
soft-start.
The TPS7H500x-SP series can be driven using
an external clock through the SYNC pin or
by using the internal oscillator at a frequency
programmed by the user. The controller family
offers the user various options for switching outputs,
synchronous rectification capability, dead time (fixed
or configurable), leading edge blank time (fixed or
configurable), and duty cycle limit. Each device in the
TPS7H500x-SP series is available in both a 22-pin
CFP ceramic package and a 24-pin TSSOP plastic
package.