1 Features

1• 5962R13202:

– Radiation Hardness Assurance (RHA) up to

TID 100 krad (Si)

– Total Ionizing Dose 100 krad (Si)

– ELDRS-Free 100 krad (Si)

– Dose Rate 10 mRAD (si)/s

– Single Event Latchup (SEL) Immune to

LET = 85 MeV-cm2/mg

– SEB and SEGR Immune to

LET = 85 MeV-cm2/mg

– SET/SEFI Onset Threshold > 40 MeV-cm2/mg,

See Radiation Report for Details

– Specifically Designed to Always Upset Low

to Avoid Damage to Critical Downstream

Component

– SET/SEFI Cross-Section Plot, See Radiation

Report for Details

• Ultra-Low VIN Range: 1.5 V to 7 V

• 3-A Maximum Output Current

• Current Share/Parallel Operation to Provide up to

6-A Output Current

• Stable With Ceramic Output Capacitor

• ±2% Accuracy Over Line, Load, and Temperature

• Programmable Soft-Start Through External

Capacitor

• Input Enable and Power-Good Output for Power

Sequencing

• Ultra-Low Dropout LDO Voltage:

62 mV at 1 A (25°C), VOUT = 1.8 V

• Low Noise:

20.33 μVRMS VIN = 2 V, VOUT = 1.8 V at 3 A

• PSRR: Over 45 dB at 1 kHz

• Excellent Load/Line Transient Response

• Foldback Current Limit

• See the Tools & Software Tab

• Thermally-Enhanced CFP Package (0.6°C/W

RθJC)

2 Applications

• Space Satellite Point of Load Supply for FPGAs,

Microcontrollers, ASICs, and Data Converters

• Space Satellite Payloads

• Radiation-Hardened Low-Noise Linear Regulator

Power Supply for RF, VCOs, Receivers, and

Amplifiers

• Clean Analog Supply Requirements

• Available in Military (–55°C to 125°C)

Temperature Range

• Engineering Evaluation (/EM) Samples are

Available(1)

3 Description

The TPS7H1101-SP is a radiation-hardened LDO

linear regulator that uses a PMOS pass element

configuration. This device operates over a wide range

of input voltage, from 1.5 V to 7 V while offering

excellent PSRR. The TPS7H1101-SP features a

precise and programmable foldback current limit

implementation with a very-wide adjustment range.

To support the complex power requirements of

FPGAs, DSPs, or microcontrollers, the TPS7H1101-

SP provides enable on and off functionality,

programmable SoftStart, current sharing capability,

and a PowerGood open-drain output.