参数资料
| 型号： | MAX8885EUK30+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/8页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3V .15A SOT23-5 |
| 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： | 3V |
| 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： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
150mA, Low-Dropout Linear Regulator
with Power-OK Output
IN
SHDN
REVERSE
BATTERY
PROTECTION
MAX8885
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
thermal sensor will turn the pass transistor on again
after the IC ’ s junction temperature cools by 20 ° C,
resulting in a pulsed output during continuous thermal-
overload conditions.
Thermal-overload protection is designed to protect the
MAX8885 in the event of fault conditions. For continuous
operation, do not exceed the absolute maximum
junction-temperature rating of T J = +150 ° C.
Operating Region and Power Dissipation
The MAX8885 ’ s maximum power dissipation depends
on the thermal resistance of the case and circuit board,
the temperature difference between the die junction
and ambient air, and the rate of air flow. The power dis-
sipation across the device is P = I OUT (V IN - V OUT ). The
maximum power dissipation is:
P MAX = (T J - T A ) / ( θ JB + θ BA )
where T J - T A is the temperature difference between the
MAX8885 die junction and the surrounding air; θ JB (or
θ JC ) is the thermal resistance of the package; and θ BA
is the thermal resistance through the printed circuit
board, copper traces, and other materials to the sur-
rounding air.
The MAX8885 ’ s GND pin performs the dual function of
providing an electrical connection to system ground
and channeling heat away. Connect GND to the system
ground using a large pad or ground plane.
Reverse-Battery Protection
The MAX8885 has a unique protection scheme that lim-
its the reverse supply current to 1mA when either V IN or
V SHDN falls below ground. The circuitry monitors the
polarity of these two pins and disconnects the internal
circuitry and parasitic diodes when the battery is
reversed. This feature prevents device damage.
Applications Information
Capacitor Selection and
Regulator Stability
The MAX8885 is designed primarily for applications
using low-cost, high-ESR output capacitors such as
small case-size tantalum electrolytic capacitors. These
capacitors have ESR that can extend as high as 10 ? ,
and their capacitance and ESR can vary widely over
their operating temperature range. For stable operation
over the full operating range, use a 4.7μF (1μF min)
capacitor with ESR > 0.5 ? (see the Region of Stable
C OUT ESR vs. Load Current graph in the Typical
Operating Characteristics ). Ceramic output capacitors
should not be used with the MAX8885. For a pin-com-
patible, functionally equivalent linear regulator that is
suitable for ceramic output capacitors, refer to the
MAX8875 data sheet.
Bypass the MAX8885 ’ s input with a 1μF or greater
capacitor to GND. Place this capacitor close to the
device (<5mm).
_______________________________________________________________________________________
7
相关PDF资料 |
PDF描述 |
|---|---|
| MAX8887EZK33+T | IC REG LDO 3.3V .3A TSOT23-5 |
| MAX8890ETCJJJ+T | IC POWER MANAGE CELL 12-TQFN |
| MAX8892EXK+T | IC REG LDO ADJ .15A SC70-5 |
| MAX8895XEWA+T | IC LI-ION CHARGER LOW SPD 25WLP |
| MAX889RESA+T | IC REG SWITCHD CAP INV ADJ 8SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8885EUK33 | 制造商:Maxim Integrated Products 功能描述:LOW-DROPOUT LINEAR REGULATORS WITH - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX8885EUK33+ | 制造商:Maxim Integrated Products 功能描述:REG LDO LIN FIX POS 3.3V 0.15A 5PIN SOT-23 - Rail/Tube |
| MAX8885EUK33+T | 功能描述:低压差稳压器 - LDO 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 |
| MAX8885EUK33-T | 功能描述:低压差稳压器 - LDO 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 |
| MAX8885EUK50+ | 制造商:Maxim Integrated Products 功能描述:REG LDO LIN FIX POS 5V 0.15A 5PIN SOT-23 - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。