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參數(shù)資料
| 型號： | MAX1963 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Low-Input-Voltage, 300mA LDO Regulators with RESETin SOT and TDFN |
| 中文描述： | 低輸入電壓，300mA的LDO與RESETin SOT和TDFN封裝穩(wěn)壓器 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 354K |
| 代理商： | MAX1963 |
M
Detailed Description
The MAX1963/MAX1976 are low-dropout, high-accuracy,
low-quiescent-current linear regulators designed primarily
for battery-powered applications. These devices supply
loads up to 300mA and are available with preset output
voltages from +0.75V to +3.0V. As illustrated in Figure 1,
the MAX1963/MAX1976 consist of a reference, an error
amplifier, a P-channel pass transistor, an internal feed-
back voltage-divider, and a power-good comparator.
The reference is connected to the error amplifier, which
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 voltage is too high, the pass-transistor gate is
pulled up, allowing less current to pass to the output.
Low-Input-Voltage, 300mA LDO Regulators
with
RESET
in SOT and TDFN
6
_______________________________________________________________________________________
Pin Description
PIN
SOT23
TDFN
NAME
FUNCTION
1
6
IN
Regulator Input. Supply voltage can range from +1.62V to +3.6V. Bypass IN with at least a 1μF
ceramic capacitor to GND (see the
Capacitor Selection and Regulator Stability
section).
2
—
GND
Ground. GND also functions as a heatsink. Solder to a large pad or circuit-board ground plane to
maximize SOT23 power dissipation.
—
4
GND
Ground
3
5
SHDN
Active-Low Shutdown Input. A logic low reduces supply current to below 1μA. Connect to IN or
logic high for normal operation.
4
3
RESET
Open-Drain, Active-Low Reset Output.
RESET
rises 3.2ms (MAX1963) or 100ms (MAX1976) after
the output has achieved regulation.
RESET
falls immediately if V
OUT
drops below 82.5% of its
nominal voltage, or if the MAX1963/MAX1976 are shut down.
Internally Connected. Leave floating or connect to GND.
Regulator Output. Sources up to 300mA. Bypass with a 4.7μF low-ESR ceramic capacitor to GND.
5
6
2
1
I.C.
OUT
—
Exposed
Pad
EP
Ground. EP also functions as a heatsink. Solder EP to a large pad or circuit-board ground plane
to maximize TDFN power dissipation.
MAX1963
MAX1976
IN
GND
SHDN
SHUTDOWN
LOGIC
THERMAL
SENSOR
REF
82.5%
REF
TIMER
ERROR
AMP
MOS DRIVER
WITH I
LIMIT
OUT
RESET
P
Figure 1. Functional Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1963ETT | Low-Input-Voltage, 300mA LDO Regulators with RESETin SOT and TDFN |
| MAX1963EZT | Low-Input-Voltage, 300mA LDO Regulators with RESETin SOT and TDFN |
| MAX1976 | Low-Input-Voltage, 300mA LDO Regulators with RESETin SOT and TDFN |
| MAX1976ETT | Low-Input-Voltage, 300mA LDO Regulators with RESETin SOT and TDFN |
| MAX19713 | 10-Bit, 45Msps, Full-Duplex Analog Front-End |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1963AETT120+T | 功能描述:低壓差穩(wěn)壓器 - LDO Low Input Voltage 300mA LDO Regulators with RESET in SOT and TDFN RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX1963AETT150+T | 功能描述:低壓差穩(wěn)壓器 - LDO Low-Input-Voltage 300mA LDO Regulators with RESET in SOT and TDFN RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX1963AETT180+T | 功能描述:低壓差穩(wěn)壓器 - LDO Low Input Voltage 300mA LDO Regulators with RESET in SOT and TDFN RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX1963AEZT090+ | 制造商:Maxim Integrated Products 功能描述:LDO REG 0.9V 0.3A 6PIN TSOT-23 - Cut Tape Product |
| MAX1963AEZT090+T | 功能描述:低壓差穩(wěn)壓器 - LDO Low-Input-Voltage 300mA LDO Regulators with RESET in SOT and TDFN RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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