LTC3204

量产

采用 2 x 2 DFN 封装的低噪声稳压充电泵

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8
产品技术资料帮助

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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产品详情

  • 固定的 3.3V 或 5V 输出
  • VIN 范围: 
    • 1.8V to 4.5V (LTC3204-3.3/LTC3204B-3.3)
    • 2.7V to 5.5V (LTC3204-5/LTC3204B-5)
  • 输出电流:
    • 高达 150mA (LTC3204-5 / LTC3204B-5)
    • 高达 50mA (LTC3204-3.3 / LTC3204B-3.3)
  • 具 IQ = 48µA 的自动突发模式 (Burst Mode®) 操作 (LTC3204-3.3 / LTC3204-5)
  • 在一般负载条件下均执行恒定频率操作 (LTC3204B-3.3 / LTC3204B-5)
  • 低噪声恒定频率 (1.2MHz) 操作
  • 内置软启动功能电路可减小浪涌电流
  • 停机功能使负载与输入断接
  • 停机电流 < 1µA
  • 短路保护 / 热保护
  • 采用外形扁平的 6 引脚 DFN 封装
LTC3204
采用 2 x 2 DFN 封装的低噪声稳压充电泵
Output Ripple vs Load Current Product Package 1
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工具及仿真模型

LTspice

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。


评估套件

eval board
DC916A-B

LTC3204BEDC-3.3 Demo Board | Low Noise Regulated Charge Pump in 2x2 DFN, VIN = 1.8V to 4.5V, VOUT = 3.3V/(40 to 50mA Max)

产品详情

Demonstration circuit 916 is a low noise regulated charge pump featuring the LTC3204B (constant frequency switching) in the 2X2 DFN package. There are two assembly versions, DC916A-A and DC916A-B for the LTC3204B-5 (5V output) and LTC3204B-3.3 (3.3V output) respectively. The DC916A-B produces a regulated 3.3V output from a 1.8V to 4.5V input. The guaranteed output current is 50mA from VIN between 1.9V and 4.5V, and 40mA for VIN less than 1.9V.


The circuit requires only three tiny 0603 surface mount capacitors and uses minimal board space. No inductor or diodes are needed. The circuit features automatic Burst Mode® operation at light loads to maintain low supply current.

eval board
DC761A-B

LTC3204EDC-3.3 Demo Board | Low Noise Regulated Charge Pump in 2 × 2 DFN, Burst Mode, VIN = 1.8V to 4.5V, VOUT = 3.3V/(40mA to 50mA Max)

产品详情

Demonstration circuit 761 is a low noise regulated charge pump featuring the LTC3204 (Burst Mode operation) in the 2 × 2 DFN package. There are two assembly versions, DC761A-A and DC761A-B for the LTC3204-5 (5V output) and LTC3204-3.3 (3.3V output) respectively. The DC761A-B produces a regulated 3.3V output from a 1.8V to 4.5V input. The guaranteed output current is 50mA from VIN between 1.9V and 4.5V, and 40mA for VIN less than 1.9V.


The circuit requires only three tiny 0603 surface mount capacitors and uses minimal board space. No inductor or diodes are needed. The circuit features automatic Burst Mode® operation at light loads to maintain low supply current.

eval board
DC761A-A

LTC3204EDC-5演示板 | 采用2x2 DFN封装的低噪声稳压电荷泵,突发模式,VIN = 2.7V–5.5V,VOUT = 5V/(65–150mA)

产品详情

演示电路761是一款采用2X2 DFN封装的低噪声稳压电荷泵,内置LTC3204(突发工作模式)。有两种装配版本:DC761A-A和DC761A-B,分别适用于LTC3204-5(5V输出)和LTC3204-3.3(3.3V输出)。DC761A-A可通过2.7V至5.5V输入产生5V稳压输出。对于3.1V至5.5V的VIN和小于3.1V的VIN,保证输出负载电流分别为150mA和65mA。DC761A-B可通过1.8V至4.5V输入产生3.3V稳压输出。对于1.9V至4.5V的VIN和小于1.9V的VIN,保证输出电流分别为50mA和40mA。


该电路只需三个微型0603表贴电容,所占电路板空间极小。无需电感或二极管。该电路在轻负载下采用自动突发工作模式(Burst Mode®),以保持低电源电流。


 

eval board
DC916A-A

LTC3204BEDC-5 Demo Board | Low Noise Regulated Charge Pump 2x2 DFN, VIN = 2.7V to 5.5V, VOUT = 5V/(65 to 150mA Max)

产品详情

Demonstration circuit 916 is a low noise regulated charge pump featuring the LTC3204B (constant frequency operation) in the 2X2 DFN package. There are two assembly versions, DC916A-A and DC916A-B for the LTC3204B-5 (5V output) and LTC3204B-3.3 (3.3V output) respectively. The DC916A-A produces a regulated 5V output from a 2.7V to 5.5V input. The guaranteed output load current is 150mA for VIN between 3.1V and 5.5V, and 65mA for VIN less than 3.1V.


The circuit requires only three tiny 0603 surface mount capacitors and uses minimal board space. No inductor or diodes are needed. The circuit features automatic Burst Mode® operation at light loads to maintain low supply current.

DC916A-B
LTC3204BEDC-3.3 Demo Board | Low Noise Regulated Charge Pump in 2x2 DFN, VIN = 1.8V to 4.5V, VOUT = 3.3V/(40 to 50mA Max)
DC916A-A - Schematic
DC761A-B
LTC3204EDC-3.3 Demo Board | Low Noise Regulated Charge Pump in 2 × 2 DFN, Burst Mode, VIN = 1.8V to 4.5V, VOUT = 3.3V/(40mA to 50mA Max)
DC761A-A - Schematic
DC761A-A
LTC3204EDC-5演示板 | 采用2x2 DFN封装的低噪声稳压电荷泵,突发模式,VIN = 2.7V–5.5V,VOUT = 5V/(65–150mA)
DC761A-A - Schematic
DC916A-A
LTC3204BEDC-5 Demo Board | Low Noise Regulated Charge Pump 2x2 DFN, VIN = 2.7V to 5.5V, VOUT = 5V/(65 to 150mA Max)
DC916A-A - Schematic

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