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参数资料
| 型号： | MAX8868EZK29+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 6/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2.84V .15A 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： | 2.84V |
| 输入电压： | 最高 6.5V |
| 电压 - 压降（标准）： | 0.165V @ 150mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 150mA（最小） |
| 电流 - 限制（最小）： | 160mA |
| 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-Noise, Low-Dropout,
150mA Linear Regulators in SOT23
______________________________________________________________Pin Description
PIN
1
2
3
4
5
NAME
SHDN
GND
IN
OUT
BP
FUNCTION
Active-Low Shutdown Input. A logic low reduces the supply current to 10nA. On the MAX8868, a logic low
also causes the output voltage to discharge to GND. Connect to IN for normal operation.
Ground. This pin also functions as a heatsink. Solder to a large pad or the circuit-board ground plane to
maximize power dissipation.
Regulator Input. Supply voltage can range from 2.5V to 6.5V. Bypass with a 1μF capacitor to GND (see
Capacitor Selection and Regulator Stability section).
Regulator Output. Sources up to 150mA. Bypass with a 1μF (<0.2 ? typical ESR) capacitor to GND.
Reference-Noise Bypass. Bypass with a low-leakage, 0.01μF ceramic capacitor for reduced noise at the
output.
IN
SHDN
REVERSE
BATTERY
PROTECTION
ERROR
MOS DRIVER
P
MAX8867
SHUTDOWN
AND POWER-ON
CONTROL
AMP
WITH I LIMIT
MAX8868
GND
* AUTO-DISCHARGE, MAX8868 ONLY
Figure 1. Functional Diagram
THERMAL
SENSOR
1.25V
REF
*
N
OUT
BP
_______________Detailed Description
The MAX8867/MAX8868 are low-noise, low-dropout,
low-quiescent-current linear regulators designed pri-
marily for battery-powered applications. The parts are
available with preset output voltages varying from 2.5V
to 5.0V in 100mV increments. These devices can sup-
ply loads up to 150mA. As illustrated in Figure 1, the
MAX8867/MAX8868 consist of a 1.25V reference, error
amplifier, P-channel pass transistor, and internal feed-
back voltage divider.
The 1.25V bandgap reference is connected to the error
amplifier’s inverting input. The error amplifier compares
this reference with the feedback voltage and amplifies
the difference. If the feedback voltage is lower than the
reference voltage, the pass-transistor gate is pulled
lower, which allows more current to pass to the output
and increases the output voltage. If the feedback volt-
age is too high, the pass-transistor gate is pulled up,
allowing less current to pass to the output. The output
voltage is fed back through an internal resistor voltage
divider connected to the OUT pin.
6
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8869EUA25 | 制造商:Maxim Integrated Products 功能描述: |
| MAX8869EUE | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX8869EUE10 | 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 |
| MAX8869EUE10+ | 功能描述:低压差稳压器 - LDO 1A MicroCap 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 |
| MAX8869EUE10+T | 功能描述:低压差稳压器 - LDO 1A MicroCap 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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