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TPS7H4203-SEP

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TPS7H4203-SEP

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Rating Space Topology Buck Iout (max) (A) 3 Vin (max) (V) 38 Vin (min) (V) 10 Vout (max) (V) 30 Vout (min) (V) 1 Features Differential Remote Sense, Enable, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Programmable slope compensation, Soft-start adjustable, Synchronous rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -55 to 125 Duty cycle (max) (%) 97.9
Rating Space Topology Buck Iout (max) (A) 3 Vin (max) (V) 38 Vin (min) (V) 10 Vout (max) (V) 30 Vout (min) (V) 1 Features Differential Remote Sense, Enable, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Programmable slope compensation, Soft-start adjustable, Synchronous rectification, Tracking, UVLO adjustable Control mode current mode Operating temperature range (°C) -55 to 125 Duty cycle (max) (%) 97.9
HTSSOP (PWP) 28 62.08 mm² (9.7 mm × 6.4 mm)
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability of up to 100krad(Si)
  • Single-event effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg
  • Input voltage range from 10V to 38V
  • 3A maximum output current
  • High efficiency (typical values for PVIN = 28V, VOUT = 12V, fSW = 250kHz)
    • 91.8% at 3A
  • Integrated 214mΩ (HS) and 100mΩ (LS) MOSFETs (typ. at TA = 25℃)
  • Flexible switching frequency options:
    • 100kHz to 500kHz, accurate (±10%), adjustable internal oscillator
    • 100kHz to 500kHz external sync capability
    • SYNC pin can be configured as an output with 180° out of phase at fSW = 250kHz to parallel 2 devices
  • 1V ± 1% voltage reference over line, temperature, and radiation
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • Power-good output monitor for undervoltage and overvoltage
  • Overvoltage protection
  • Supports inverting buck-boost topology
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temperature range
  • Total ionizing dose (TID) characterized
    • Radiation hardness assurance (RHA) availability of up to 100krad(Si)
  • Single-event effects (SEE) characterized
    • Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg
    • Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg
  • Input voltage range from 10V to 38V
  • 3A maximum output current
  • High efficiency (typical values for PVIN = 28V, VOUT = 12V, fSW = 250kHz)
    • 91.8% at 3A
  • Integrated 214mΩ (HS) and 100mΩ (LS) MOSFETs (typ. at TA = 25℃)
  • Flexible switching frequency options:
    • 100kHz to 500kHz, accurate (±10%), adjustable internal oscillator
    • 100kHz to 500kHz external sync capability
    • SYNC pin can be configured as an output with 180° out of phase at fSW = 250kHz to parallel 2 devices
  • 1V ± 1% voltage reference over line, temperature, and radiation
  • Monotonic start-up into prebiased outputs
  • Adjustable slope compensation and soft-start
  • Adjustable input enable and power-good output for power sequencing
  • Power-good output monitor for undervoltage and overvoltage
  • Overvoltage protection
  • Supports inverting buck-boost topology
  • Plastic packages outgas tested per ASTM E595
  • Available in military (–55°C to 125°C) temperature range

The TPS7H4203 is a 10V to 38V, 3A synchronous buck converter optimized for use in a space environment. The peak current mode converter offers high efficiency, excellent transient performance, and a lower component count.

The TPS7H4203 wide voltage range allows it to function as a point-of-load regulator, converting power directly from 28V or 12V rails. The SS_TR pin controls the output voltage startup ramp, while the EN and PWRGD pins enable power sequencing capabilities.

Two devices can be configured in parallel without an external clock for increased current capabilities. Additionally, the device includes configurable loop compensation and slope compensation. Internal protection for overload, overvoltage, and over temperature are also incorporated.

The TPS7H4203 is a 10V to 38V, 3A synchronous buck converter optimized for use in a space environment. The peak current mode converter offers high efficiency, excellent transient performance, and a lower component count.

The TPS7H4203 wide voltage range allows it to function as a point-of-load regulator, converting power directly from 28V or 12V rails. The SS_TR pin controls the output voltage startup ramp, while the EN and PWRGD pins enable power sequencing capabilities.

Two devices can be configured in parallel without an external clock for increased current capabilities. Additionally, the device includes configurable loop compensation and slope compensation. Internal protection for overload, overvoltage, and over temperature are also incorporated.

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* 数据表 TPS7H4203-SP and TPS7H4203-SEP 10V to 38V Input 3A Radiation-Hardened Synchronous Buck Converter 数据表 PDF | HTML 2026-10-28

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评估板

TPS7H4203EVM — TPS7H4203-SEP 评估模块

TPS7H4203EVM 演示了单个 TPS7H4203-SEP 同步降压转换器的运行情况。该板提供可用于组装额外元件的空间，以便对定制配置进行测试；它还提供了跳线和测试点，以便轻松进行器件配置和性能验证。
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仿真模型

TPS7H4203-SP and TPS7H4203-SEP SIMPLIS Model

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封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 28 Ultra Librarian
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