TPS53315 is a D-CAP™ mode, 12-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and small package power systems.

This device features single-rail input support, one 19-mΩ and one 7-mΩ integrated MOSFET, accurate 1%, 0.6 V Reference, and integrated boost switch. A sample of competitive features include: greater than 96% maximum efficiency, 3 V to 15 V wide input voltage range, very low external component count, D-CAP™ mode control for super fast transient, selectable auto-skip and PWM operation, internal soft-start control, adjustable frequency, and no need for compensation.

The conversion input voltage ranges from 3 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

The TPS53315 is available in a 5 mm × 7 mm 40-pin, VQFN package and is specified from –40°C to 85°C.

• Conversion Input Voltage Range: 3 V to 15 V
• VDD Input Voltage Range: 4.5 V to 25 V
• Output Voltage Range: 0.6 V to 5.5 V
• 5-V LDO Output
• Integrated Power MOSFETs with 12-A Continuous Output Current
• <10-μA Shut Down Current
• Auto-Skip Eco-mode? for Light-Load Efficiency
• D-CAP? Mode with Fast Transient Response
• Selectable Switching Frequency from 250 kHz to 1 MHz with an External Resistor
• Built-in 1%, 0.6-V Reference
• 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable Internal Voltage Servo Soft-Start
• Pre-Charged Start-up Capability
• Integrated Boost Switch
• Adjustable Overcurrent Limit Via External Resistor
• Overvoltage/Undervoltage, UVLO and Over- Temperature Protection
• Support All Ceramic Output Capacitors
• Open Drain Power Good Indication
• 40-pin VQFN Package with Thermal Pad

• Vin (Min) (V)
• 3
• Vin (Max) (V)
• 15
• Vout (Min) (V)
• 0.6
• Vout (Max) (V)
• 5.5
• Iout (Max) (A)
• 12
• Iq (Typ) (uA)
• 320
• Switching frequency (Min) (kHz)
• 250
• Switching frequency (Max) (kHz)
• 1000
• Features
• Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Forced PWM, Soft Start Adjustable, Over Current Protection, UVLO Fixed
• Rating
• Catalog
• Regulated outputs (#)
• 1
• Control mode
• D-CAP
• Duty cycle (Max) (%)
• 90

TPS53315的完整型号有：TPS53315RGFR、TPS53315RGFT，以下是这些产品的关键参数及官网采购报价：

TPS53315RGFR，工作温度：-40 to 85，封装：VQFN (RGF)-40，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS53315RGFR的批量USD价格：2.662（1000+）

TPS53315RGFT，工作温度：-40 to 85，封装：VQFN (RGF)-40，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网TPS53315RGFT的批量USD价格：3.194（1000+）

TPS53315 PSpice Transient Model (Rev. B)

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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