TPS62802YKAR


1.75V-5.5V, 1A ultra-low IQ buck converter, 2.3μA Iq, 4MHz, DSBGA-6 (1.05x0.70mm), R2D VOUT selection

4179

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制造商零件:

TPS62802YKAR

包装:

6-DSBGA (1.05x0.70mm)

品牌:
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说明

产品概览

The TPS62802YKAR from Texas Instruments is an ultra-low quiescent current step-down converter operating from 1.75V to 5.5V input, delivering up to 1A output. With only 2.3μA operating quiescent current and 4MHz switching frequency, it achieves extremely small solution size in a 0.7×1.05mm DSBGA-6 package. The innovative R2D converter allows flexible output voltage selection via a single external resistor.

主要规格

拓扑结构 Buck (Step-Down)
输入电压范围 1.75V ~ 5.5V
Output Voltage Range 1.8V ~ 3.3V (16 selectable via R2D)
输出电流 1A
开关频率 4 MHz
静态电流 2.3 μA (typical)
Output Voltage Accuracy 1%
控制模式 DCS-Control
Synchronous Rectifier Yes
Duty Cycle (max) 100%
工作温度 -40°C ~ 125°C (TJ)
包装 6-DSBGA (1.05×0.70mm)
部件状态 活跃

特点

  • 2.3μA ultra-low operating quiescent current
  • 4MHz switching frequency enables tiny external components
  • R2D converter: 16 selectable output voltages via one resistor
  • 1% output voltage accuracy
  • Smart enable pin for mode selection (Power Save / Forced PWM)
  • Output discharge function
  • 100% duty cycle operation for lowest dropout
  • Supports less than 0.6mm design height
  • Less than 5mm² total solution size

应用

  • Wearable electronics and fitness trackers
  • IoT sensor nodes and battery-powered devices
  • Smartphone and tablet sub-rail regulation
  • Portable medical devices
  • Ultra-compact embedded systems

The TPS62802YKAR is an ultra-low quiescent current step-down converter from Texas Instruments designed for battery-powered and space-constrained applications. Operating from a 1.75V to 5.5V input, it delivers up to 1A output current with a typical quiescent current of just 2.3μA. The innovative R2D (Resistor-to-Digital) converter allows the selection of 16 internally set output voltages (1.8V to 3.3V) by connecting a single external resistor to the VSEL/MODE pin, eliminating the need for a traditional resistor divider and improving output voltage accuracy to 1%. The 4MHz switching frequency enables the use of tiny 0.47μH inductors and small capacitors, achieving a total solution size of less than 5mm². The DCS-Control topology provides seamless transition between Power Save Mode and Forced PWM Mode.

The TPS62802 uses TI’s DCS-Control topology with an integrated R2D (Resistor-to-Digital) converter for output voltage programming. The R2D converter reads the resistance value connected to the VSEL/MODE pin and selects one of 16 pre-programmed output voltages from an internal lookup table. This approach provides better accuracy than a traditional external resistor divider. The VSEL/MODE pin serves dual purposes: during startup, it determines the output voltage via the connected resistor; after startup, pulling the pin high forces PWM mode for lowest output ripple. In Power Save Mode at light loads, the device operates in PFM mode with 2.3μA quiescent current, generating single switching pulses followed by sleep periods. The output discharge function ensures a defined output voltage down-ramp when the device is disabled.

针脚 名称 类型 说明
A1 VIN PWR Input supply voltage (1.75V-5.5V)
A2 接地 接地 地面
B1 EN I Enable (active high)
B2 VSEL/MODE I Voltage select resistor / Mode control
C1 SW O Switch node (connect to inductor)
C2 VOS I Output voltage sense
  • Wearable Devices: Ultra-compact POL conversion with sub-0.6mm height for smartwatches and fitness bands
  • IoT Sensors: 2.3μA quiescent current extends battery life in always-on wireless sensor nodes
  • Smartphones: Sub-rail regulation for processor I/O and memory rails from Li-ion battery
  • Portable Medical: Low-power conversion for glucose monitors and pulse oximeters
  • Compact Embedded: Less than 5mm² solution size for space-constrained PCB layouts
模型 制造商 主要区别
TPS62800YKAR 德州仪器 0.4V-0.775V output range, same package
TPS62801YKAR 德州仪器 0.8V-1.55V output range, same package
TPS62808YKAR 德州仪器 1.5MHz version, 1.8V-3.3V output
NCP1840AMUTAG onsemi 1A buck, 2MHz, DFN-6, similar size
MAX38640AATA+T 模拟器件公司 0.5A, 330nA IQ, TDFN-6
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我们从合作供应链采购的所有电子元件都经过严格的进货检验。通过仔细的测试,我们确保交付给客户的所有产品都是原装正品,符合质量要求。此外,我们还保存完整的检验记录,使整个供应链流程清晰可查。.

认证
我们获得了多项专业认证,并建立了自己的专业检测实验室,确保交付给客户的每一件产品都符合最高质量要求。我们严格按照流程进行检测,确保产品质量稳定、参数准确。为保证原装正品,我们还与可靠的第三方检测机构合作,进行严格的质量检测。我们始终高度重视质量,完全符合行业标准、相关法规和 ISO 9001:2015 的要求。.

服务与包装

我们从合作供应链采购的所有电子元件都经过严格的进货检验。通过仔细的测试,我们确保交付给客户的所有产品都是原装正品,符合质量要求。此外,我们还保存完整的检验记录,使整个供应链流程清晰可查。.

认证
我们获得了多项专业认证,并建立了自己的专业检测实验室,确保交付给客户的每一件产品都符合最高质量要求。我们严格按照流程进行检测,确保产品质量稳定、参数准确。为保证原装正品,我们还与可靠的第三方检测机构合作,进行严格的质量检测。我们始终高度重视质量,完全符合行业标准、相关法规和 ISO 9001:2015 的要求。.