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參數資料
| 型號： | MAX8531 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Dual Low-Dropout Linear Regulators with RESETor Low-Noise Output in UCSP or QFN |
| 中文描述： | 雙路、低壓差線性穩壓器，提供復位輸出或低噪聲輸出，UCSP或QFN封裝 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 280K |
| 代理商： | MAX8531 |
General Description
The MAX8530/MAX8531 offer the benefits of low-
dropout voltage and ultra-low power regulation in
subminiaturized UCSP and QFN packages with an inte-
grated microprocessor reset circuit (MAX8530 only).
The devices operate from a 2.5V to 6.5V input and
deliver up to 200mA and 150mA outputs with low
dropout of 100mV (typ) at 100mA. Designed with an
internal P-channel MOSFET pass transistor, the supply
current is kept at a low 130μA (with both LDOs on),
independent of the load current and dropout voltage.
Other features include short-circuit protection and
thermal-shutdown protection.
The MAX8530 provides microprocessor open-drain,
active-low reset output to monitor OUT1, eliminating
external components and adjustments. The MAX8530
asserts a 100ms (min)
RESET
signal when OUT1 drops
below 87% of the nominal output voltage. The MAX8531
includes a reference bypass pin for low output noise
(40μV
RMS
).
Both devices include a logic-controlled shutdown input
and are available in 6-bump UCSP and 6-pin thin QFN
exposed pad packages.
Applications
Cellular and Cordless Phones
PDAs and Palmtop Computers
Notebook Computers
Digital Cameras
PCMCIA Cards
Wireless LAN Cards
Hand-Held Instruments
Features
o
Guaranteed 200mA Output Current for OUT1
o
Guaranteed 150mA Output Current for OUT2
o
Low 100mV (typ) Dropout at 100mA Load for
both LDOs
o
Open-Drain, Active-Low 100ms (min) Reset Timer
(MAX8530)
o
Low 40μV
RMS
Output Noise (MAX8531)
o
Low 130μA Operating Supply Current
o
<1μA Shutdown Current
o
Thermal-Overload and Short-Circuit Protection
o
Output Current Limit
o
Tiny Packages Available
1.16 x 1.57 x 0.6mm UCSP (3 x 2 Grid)
3mm x 3mm Thin QFN
Ordering Information
M
Dual Low-Dropout Linear Regulators
with
RESET
or Low-Noise Output in UCSP or QFN
19-2711; Rev 0; 1/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
*
xy = Output voltage code (see the Output Voltage Selector
Guide).
**
EP = Exposed pad.
EVALUATION KIT
AVAILABLE
Pin Configurations appear at end of data sheet.
Output Voltage Selector Guide appears at end of data
sheet.
Typical Operating Circuit
PART
TEMP RANGEVOLTAGE
PIN-
PACKAGE
M A X8 5 3 0
E BTxy* - 40
°
C to + 85
°
C 1.5V to 3.3V 6 U C S P
M AX 8530E TTxy* - 40
°
C to + 85
°
C 1.5V to 3.3V 6 Thi n Q FN E P *
M A X8 5 3 1
E BTxy* - 40
°
C to + 85
°
C 1.5V to 3.3V 6 U C S P
M AX 8531E TTxy* - 40
°
C to + 85
°
C 1.5V to 3.3V 6 Thi n Q FN E P
IN
OUT1
2.2
μ
F
C
IN
2.2
μ
F
INPUT
2.5V TO 6.5V
1.5V TO 3.3V
AT 200mA
1.5V TO 3.3V
AT 150mA
1
μ
F
SHDN
OFF
ON
OUT2
GND
RESET
BASEBAND
μ
P
V
I/O
V
CORE
RESET
MAX8530
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX8531EBTA8 | 制造商:Maxim Integrated Products 功能描述:DUAL LOW-DROPOUT LINEAR REGULATORS - Rail/Tube |
| MAX8531EBTA8-T | 功能描述:低壓差穩壓器 - LDO Dual Low-Dropout Linear Regulator 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 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX8531EBTGG | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8531EBTGG+T | 功能描述:低壓差穩壓器 - LDO Dual Low-Dropout Linear Regulator 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 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX8531EBTGGJ+T | 功能描述:低壓差穩壓器 - LDO Dual Low-Dropout Linear Regulator 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 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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