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| 型号： | MAX8840ELT33+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V .15A 6-UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 6V |
| 电压 - 压降（标准）： | 0.12V @ 120mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA（最小） |
| 电流 - 限制（最小）： | 150mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN |
| 供应商设备封装： | 6-uDFN（1.5x1.0） |
| 包装： | 带卷 (TR) |
19-0629; Rev 1; 1/07
Ultra-Low-Noise, High PSRR, Low-Dropout,
150mA Linear Regulators in μDFN
General Description
The MAX8840/MAX8841/MAX8842 ultra-low-noise, low-
dropout (LDO) linear regulators are designed to deliver
up to 150mA continuous output current. These regula-
tors achieve a low 120mV dropout for 120mA load cur-
rent. The MAX8840 uses an advanced architecture to
achieve ultra-low output voltage noise of 11μV RMS and
PSRR of 54dB at 100kHz.
The MAX8841 does not require a bypass capacitor,
hence achieving the smallest PC board area. The
MAX8842 output voltage can be adjusted with an exter-
nal divider.
The MAX8840/MAX8841 are preset to a variety of volt-
ages in the 1.5V to 4.5V range. Designed with a p-channel
MOSFET series pass transistor, the MAX8840/MAX8841/
MAX8842 maintain very low ground current (40μA).
The regulators are designed and optimized to work with
low-value, low-cost ceramic capacitors. The MAX8840
requires only 1μF (typ) of output capacitance for stability
with any load. When disabled, current consumption drops
Features
? Space-Saving 1.0mm x 1.5mm x 0.8mm μDFN
? 11μV RMS Output Noise at 100Hz to 100kHz
Bandwidth (MAX8840)
? 78dB PSRR at 1kHz (MAX8840)
? 120mV Dropout at 120mA Load
? Stable with 1μF Ceramic Capacitor for Any Load
? Guaranteed 150mA Output
? Only Need Input and Output Capacitors (MAX8841)
? Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V,
2.85V, 3V, 3.3V, 4.5V (MAX8840/MAX8841) and
Adjustable (MAX8842)
? Low 40μA Ground Current
? Excellent Load/Line Transient
? Overcurrent and Thermal Protection
Ordering Information
to below 1μA.
The MAX8840/MAX8841/MAX8842 are available in a tiny
1.0mm x 1.5mm x 0.8mm μDFN.
Applications
Cellular and Cordless Phones
PDA and Palmtop Computers
Base Stations
PART*
MAX8840 ELTxy+T
MAX8841 ELTxy+T
MAX8842 ELT+T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
6 μDFN-6
1.5mm x 1.0mm
6 μDFN-6
1.5mm x 1.0mm
6 μDFN-6
1.5mm x 1.0mm
Bluetooth Portable Radios and Accessories
Wireless LANs
Digital Cameras
Personal Stereos
Portable and Battery-Powered Equipment
Typical Operating Circuits
* xy is the output voltage code (see the Output Voltage Selector
Guide). Other versions between 1.5V and 4.5V are available in
100mV increments. Contact factory for other versions.
+ Denotes lead-free package.
Output Voltage Selector Guide appears at end of data sheet.
Pin Configuration
TOP VIEW
INPUT
OUTPUT PRESET
ON
2V TO 6V
C IN
1 μ F
OFF
IN
MAX8840
SHDN
GND
OUT
BP
1.5V TO 4.5V
C BP
10nF
C OUT
1 μ F
IN 1
GND 2
MAX8840
MAX8841
MAX8842
6 OUT
5 N.C.
BP (MAX8840)
SHDN 3
4 N.C. (MAX8841)
FB (MAX8842)
Typical Operating Circuits continued at end of data sheet.
μ DFN
(1.5mm x 1.0mm)
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8840ELT40+T | 功能描述:低压差稳压器 - LDO PSRR 150mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8840ELT45+T | 功能描述:低压差稳压器 - LDO PSRR 150mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8840ELT45+TG65 | 功能描述:低压差稳压器 - LDO PSRR 150mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8840ELTXY+T | 功能描述:低压差稳压器 - LDO PSRR 150mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX8840EYT27+ | 功能描述:低压差稳压器 - LDO PSRR 150mA Linear Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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