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參數(shù)資料
| 型號(hào)： | MAX1616EUK-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | High-Voltage, Low-Power Linear Regulators for Notebook Computers |
| 中文描述： | 1.24 V-28 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PDSO5 |
| 封裝： | MO-178AA, SOT-23, 5 PIN |
| 文件頁數(shù)： | 5/8頁 |
| 文件大小： | 92K |
| 代理商： | MAX1616EUK-T |
_______________Detailed Desc ription
The MAX1615/MAX1616 low-quiescent-current linear
regulators are designed primarily for high input voltage
applications. The MAX1615 supplies a preselected 3.3V
or 5.0V output for loads up to 30mA. The MAX1616
provides an adjustable voltage from 1.24V to 28V. The
maximum output current is a function of the package’s
maximum power dissipation for a given temperature. A
5μA load is required to maintain output regulation.
The MAX1615’s output voltage is fed back through an
internal resistor voltage divider connected to OUT. Set
the output voltage to either 3.3V or 5.0V with the 5/
3
pin.
Select the 5V output by connecting 5/
3
to OUT, or the
3.3V output by connecting 5/
3
to GND.
The MAX1616 uses external feedback, allowing the out-
put voltage to be set by external resistors (see
Setting
the MAX1616 Output Voltage section). The typical FB
threshold is at 1.24V.
S hutdown
The device enters shutdown mode when
SHDN
is low.
In shutdown mode, the pass transistor, control circuit,
reference, and all biases turn off, reducing the supply
current to below 1μA. Connect
SHDN
to IN for automatic
start-up.
Current Limit
Output current is limited to 100mA (typical). The current
limit exceeds the 30mA (max) safe operating limit. The
output can be shorted to ground for 30 seconds without
damaging the part.
T hermal-Overload Protec tion
When the junction temperature exceeds T
J
= +150°C,
the thermal sensor sends a signal to the shutdown
logic, turning off the pass transistor and allowing the IC
to cool. The thermal sensor turns the pass transistor on
again after the IC’s junction temperature cools by
+20°C (typical), resulting in a pulsating output during
continuous thermal-overload conditions.
Operating Region and Power Dissipation
Maximum power dissipation depends on the thermal
resistance of the case and circuit board, the tempera-
ture difference between the die junction and ambient
air, and the rate of air flow. The device’s power dissipa-
M
High-Voltage, Low-Power Linear Regulators
for Notebook Computers
_______________________________________________________________________________________
5
______________________________________________________________Pin Desc ription
1
IN
Positive Input Voltage. Connect to a +4V to +28V supply.
2
GND
Ground
4
5/
3
Preset Output Voltage Select. Connect to GND for 3.3V output or to OUT
for 5.0V output.
5
SHDN
Shutdown, active low input. Connect to IN for automatic start up.
CURRENT
LIMIT
VREF
OUT
GND
SHDN
5/3
(MAX1615)
FB
(MAX1616)
IN
MAX1615
MAX1616
Figure 1. Functional Diagram
1
2
PIN
—
5
NAME
FUNCTION
MAX1615
MAX1616
3
OUT
Regulator Output
3
—
FB
Feedback Input. Regulates to 1.24V nominally.
4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1615 | High-Voltage, Low-Power Linear Regulators for Notebook Computers |
| MAX1615EUK | IC-L/POW.LINEAR REGULATOR |
| MAX1616 | High-Voltage.Low-Power Linear Regulators for Notebook Computers |
| MAX1617AMEE | Remote/Local Temperature Sensor with SMBus Serial Interface |
| MAX1617A | Remote/Local Temperature Sensor with SMBus Serial Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1617AEVKIT | 功能描述:板上安裝溫度傳感器 Evaluation Kit for the MAX1617A RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX1617AMEE | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX1617AMEE+ | 功能描述:板上安裝溫度傳感器 Remote/Local w/SMBus Serial Interface RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX1617AMEE+ | 制造商:Maxim Integrated Products 功能描述:IC TEMP SENSOR 8BIT ?2.5 |
| MAX1617AMEE+T | 功能描述:板上安裝溫度傳感器 Remote/Local w/SMBus Serial Interface RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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