双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

SOT8055-1

NEX30606

1.8 V to 5.0 V, 600 mA, 220 nA ultra-low quiescent current, step-down converter

The NEX30606 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 220 nA.

The device uses COT control (Constant On Time) to achieve low power consumption mode and fast transient, operates with a switching frequency of 1.5 MHz. At light load conditions, it seamlessly enters Power Save Mode to reduce switching cycles and maintain high efficiency.

Output voltage can be configured by VSET pin. For 1.8 V output, connects the VSET pin to GND. For other output voltages, connects resistor to VSET pin following values in table 5. Sixteen internally set voltages can be selected.

The NEX30606 provides an output current up to 600 mA. With input voltage up to 5.0 V, the devices supports multiple sources such as 2S to 3S Alkaline, 1S Li-MnO2, 1S Li-ion/Li-SOCL2.

The NEX30606 device series comes in a tiny 6-pin WLCSP package with 0.35-mm pitch.

Features and benefits

  • 220 nA operating quiescent current
  • Input voltage range VVIN from 1.8 V to 5.0 V
  • Output current up to 600 mA
  • 16 selectable fixed output voltages
  • 2% output voltage accuracy
  • Output discharge
  • Constant on time control
  • >90% efficiency at IOUT = 1 mA (VVIN = 3.6 V to VOUT = 1.8 V)
  • >92.8% efficiency at IOUT = 300 mA (VVIN = 3.6 V to VOUT = 1.8 V)
  • Pseudo-fixed 1.5 MHz switching frequency
  • Enable pin
  • WLCSP6 (SOT8055-1) package option

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C2a exceeds 500 V

  • Specified from Tj = -40 °C to +85 °C and -40 °C to +125 °C

Applications

  • Wearable electronics
  • Smart meters
  • Asset tracking device
  • Medical sensor patches and monitor
  • Industrial IOT/Narrowband (NB)-IOT
  • 3 x AA battery powered applications
Figure 1. Typical application

VOUT = 1.8 V; RSET = 21.5 kΩ; L = 2.2 µH

(1) VVIN = 2.5 V; (2) VVIN = 3.3 V;

(3) VVIN = 3.6 V; (4) VVIN = 4.2 V;

(5) VVIN = 5.0 V;

Figure 2. Efficiency versus load current

封装

型号 可订购的器件编号,(订购码(12NC)) 状态 标示 封装 外形图 回流焊/波峰焊 包装
NEX30606UA NEX30606UAZ
(935691822336)
Active A SOT8055-1
WLCSP6
(SOT8055-1)
SOT8055-1 SOT8055-1_336

环境信息

型号 可订购的器件编号 化学成分 RoHS RHF指示符
NEX30606UA NEX30606UAZ NEX30606UA rohs rhf rhf
品质及可靠性免责声明

文档 (4)

文件名称 标题 类型 日期
NEX30606 1.8 V to 5.0 V, 600 mA, 220 nA ultra-low quiescent current, step-down converter Data sheet 2024-11-20
AN90063 Questions about package outline drawings Application note 2025-06-13
lealfet_NEX3060x_220_a_ultralow_buck_converter lealfet_NEX3060x_220_a_ultralow_buck_converter Leaflet 2025-01-13
SOT8055-1 WLCSP6: wafer level chip-size package; 6 bumps (3 x 2) Package information 2024-11-25

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