参数资料
| 型号： | MAX1819EBL33+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/9页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V/ADJ .5A 6-UCSP |
| 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，固定式或可调式 |
| 输出电压： | 3.3V，1.25 V ~ 5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.133V @ 500mA，- |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA（最小） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFBGA，CSPBGA |
| 供应商设备封装： | 6-uCSP（1.57x1.16） |
| 包装： | 带卷 (TR) |
500mA Low-Dropout Linear Regulator in UCSP
Applications Information
Capacitor Selection and
Regulator Stability
Capacitors are required at the MAX1819’s input and
output for stable operation over the full temperature
range and with load currents up to 500mA. Connect a
1μF capacitor between IN and ground and a 3.3μF low-
ESR capacitor between OUT and ground. For output
voltages less than 2V, use a 4.7μF low-ESR output
capacitor. The input capacitor (C IN ) lowers the source
impedance of the input supply. Reduce noise and
improve load-transient response, stability, and power-
supply rejection by using larger output capacitors, such
as 10μF.
The output capacitor’s (C OUT ) equivalent series resis-
tance (ESR) affects stability and output noise. Use out-
put capacitors with an ESR of 0.1 ? or less to ensure
stability and optimum transient response. Surface-
mount ceramic capacitors have very low ESR and are
The MAX1819 load-transient response (see the Typical
Operating Characteristics ) shows two components of
the output response: a DC shift from the output imped-
ance due to the load current change, and the transient
response. Increasing the output capacitor’s value and
decreasing the ESR attenuates the overshoot.
Input-Output (Dropout) Voltage
A regulator’s minimum input-to-output voltage differential
(dropout voltage) determines the lowest usable supply
voltage. In battery-powered systems, this determines the
useful end-of-life battery voltage. Because the MAX1819
uses a P-channel MOSFET pass transistor, its dropout
voltage is a function of drain-to-source on-resistance
(R DS(ON) ) multiplied by the load current (see the Typical
Operating Characteristics ).
V DROPOUT = V IN - V OUT = R DS(ON) × I OUT
The MAX1819 ground current remains at approximately
150μA in dropout.
commonly available in values up to 10μF. C IN and
C OUT use short traces to connect to the MAX1819.
Noise, PSRR, and Transient Response
The MAX1819 is designed to operate with low dropout
voltages and low quiescent currents in battery-powered
systems while still maintaining good noise, transient
response, and AC rejection. See the Typical Operating
Characteristics for a plot of Power-Supply Rejection
Ratio (PSRR) vs. Frequency. When operating from noisy
sources, improved supply-noise rejection and transient
response can be achieved by increasing the values of
the input and output bypass capacitors and through
passive filtering techniques.
TRANSISTOR COUNT: 845
Chip Information
8
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相关代理商/技术参数 |
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| MAX1819EBL50 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX1819EBL50+T | 功能描述:低压差稳压器 - LDO 500mA Low-Dropout Linear Regulator in UCSP 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 |
| MAX1819EBL50-T | 功能描述:低压差稳压器 - LDO 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 |
| MAX1819EVKIT | 功能描述:低压差稳压器 - LDO MAX1819 EVAL KIT 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 |
| MAX181ACPL | 功能描述:数据转换系统 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 转换速率:0.001 MSPs 分辨率:24 bit 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
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