参数资料
型号: MAX8888EZK18/V+T
厂商: Maxim Integrated
文件页数: 7/9页
文件大小: 0K
描述: IC REG LDO 1.8V .3A TSOT23-5
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: 1.8V
输入电压: 2.5 V ~ 5.5 V
稳压器数量: 1
电流 - 输出: 300mA
电流 - 限制(最小): 420mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-5 细型,TSOT-23-5
供应商设备封装: TSOT-23-5
包装: 带卷 (TR)
Low-Dropout, 300mA Linear Regulators in SOT23
IN
SHDN
MAX8888
SHUTDOWN
LOGIC
ERROR
AMP
POK
MOS DRIVER
WITH I LIMIT
P
OUT
THERMAL
SENSOR
1.25V
REF
95%
REF
POK
GND
Figure 1. Functional Diagram
stability and optimum transient response. Surface-mount
ceramic capacitors have very low ESR and are com-
monly available in values up to 10μF. Connect C IN and
C OUT as close to the MAX8887/MAX8888 as possible to
minimize the impact of PC board trace inductance.
Noise, PSRR, and Transient Response
The MAX8887/MAX8888 are designed to operate with
low dropout voltages and low quiescent currents in bat-
tery-powered systems while still maintaining excellent
noise, transient response, and AC rejection. See the
Typical Operating Characteristics for a plot of power-
supply rejection ratio (PSRR) versus 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.
400
300
200
100
0
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
(POWER DISSIPATION LIMIT)
T A = +85 ° C
T A = +70 ° C
MAXIMUM RECOMMENDED OUTPUT CURRENT
Input-Output (Dropout) Voltage
A regulator’s minimum input-to-output voltage differen-
0
0.5
1.0
1.5 2.0 2.5
(V IN - V OUT ) (V)
3.0
3.5
4.0
tial (dropout voltage) determines the lowest usable sup-
ply voltage at which the output is regulated. In
battery-powered systems, this determines the useful
end-of-life battery voltage. The MAX8887/MAX8888 use
a p-channel MOSFET pass transistor. Its dropout volt-
age 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
Figure 2. Power Operating Regions: Maximum Output Current
vs. Input Voltage
_______________________________________________________________________________________
7
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相关代理商/技术参数
参数描述
MAX8888EZK19+ 制造商:Maxim Integrated Products 功能描述:REG LDO LIN FIX POS 1.9V 0.3A 5PIN TSOT-23 - Cut Tape Product
MAX8888EZK19+T 功能描述:低压差稳压器 - LDO 300mA 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
MAX8888EZK20+ 制造商:Maxim Integrated Products 功能描述:REG LDO LIN FIX POS 2V 0.3A 5PIN TSOT-23 - Cut Tape Product
MAX8888EZK20+T 功能描述:低压差稳压器 - LDO 300mA 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
MAX8888EZK21+ 制造商:Maxim Integrated Products 功能描述:REG LDO LIN FIX POS 2.1V 0.3A 5PIN TSOT-23 - Cut Tape Product