TPS53321_TI 具有集成 MOSFET 的 2.9V 至 6V、5A 降压转换器

TPS53321的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：直流/直流开关稳压器 - 降压稳压器
功能描述：具有集成 MOSFET 的 2.9V 至 6V、5A 降压转换器
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TPS53321的产品详情：

The TPS53321 device provides a fully integrated 3-V to 5-V V_IN integrated synchronous FET converter solution with 16 total components in 200 mm² of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution.

The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × V_IN.

The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

TPS53321的优势和特性：

96% Maximum Efficiency
Continuous 5-A Output Current
Supports All MLCC Output Capacitor
SmoothPWM? Auto-Skip Eco-Mode? for Light-Load Efficiency
Optimized Efficiency at Light and Heavy Loads
Voltage Mode Control
Supports Master-Slave Interleaved Operation
Synchronization up to ±20% of Nominal Frequency
Conversion Voltage Range Between 2.9 V and 6 V
Soft-Stop Output Discharge During Disable
Adjustable Output Voltage Ranging Between 0.6 V and 0.84 V × VIN
Overcurrent, Overvoltage, and Overtemperature Protection
Small 3 mm × 3 mm, 16-Pin QFN Package
Open-Drain Power Good Indication
Internal Boot Strap Switch
Low RDS(on), 24 mΩ With 3.3-V Input and 19-mΩ With 5-V Input
Supports Prebias Start-Up

TPS53321的参数（英文）：

Vin (Min) (V)
2.9
Vin (Max) (V)
6
Vout (Min) (V)
0.6
Vout (Max) (V)
4.2
Iout (Max) (A)
5
Iq (Typ) (uA)
320
Switching frequency (Min) (kHz)
1100
Switching frequency (Max) (kHz)
1100
Features
Enable, Frequency Synchronization, Light Load Efficiency, Output Discharge, Power Good, Pre-Bias Start-Up, Synchronous Rectification
Rating
Catalog
Regulated outputs (#)
1
Control mode
Voltage Mode
Duty cycle (Max) (%)
99

TPS53321具体的完整产品型号参数及价格（美元）：

TPS53321的完整型号有：TPS53321RGTR、TPS53321RGTT，以下是这些产品的关键参数及官网采购报价：

TPS53321RGTR，工作温度：-40 to 85，封装：VQFN (RGT)-16，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TPS53321RGTR的批量USD价格：.924（1000+）

TPS53321RGTT，工作温度：-40 to 85，封装：VQFN (RGT)-16，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TPS53321RGTT的批量USD价格：1.109（1000+）

TPS53321的评估套件：

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TPS53321的电路图解：

TPS53321的评估套件：