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MAX8863, MAX8863R, MAX8863S, MAX8863T, MAX8864, MAX8864R, MAX8864S, MAX8864T
Low-Dropout, 120mA Linear Regulators
SOT23 Low-Noise, Low-Dropout Regulator
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Status
Active: In Production.
Description
The MAX8863T/S/R and MAX8864T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 80µA supply current to remain independent of load, making these devices ideal for battery-operated portable equipment such as cellular phones, cordless phones, and modems.
The devices feature Dual Mode™ operation: their output voltage is preset (at 3.15V for the T versions, 2.84V for the S versions, or 2.80V for the R versions) or can be adjusted with an external resistor divider. Other features include low-power shutdown, short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX8864 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown mode. Both devices come in a miniature 5-pin SOT23-5 package.
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Data Sheet
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Key Features
- Low Cost
- Low, 55mV Dropout Voltage @ 50mA IOUT
- Low, 68µA No-Load Supply Current
- Low, 80µA Operating Supply Current (even in dropout)
- Low, 350µVRMS Output Noise
- Miniature External Components
- Thermal Overload Protection
- Output Current Limit
- Reverse Battery Protection
- Dual Mode Operation: Fixed or Adjustable (1.25V to 6.5V) Output
- Low-Power Shutdown
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Applications/Uses
- Audio Systems
- Cordless Phones
- Electronic Planners
- Handheld Instruments (PDAs, Palmtops)
- Modems
- Palmtop Computers
- PCMCIA Cards
- PCS Telephones
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Key Specifications:
| Linear Regulators |
| Part Number |
Regulators |
VIN
(V) |
VIN
(V) |
Preset VOUT
(V) |
Adj. VOUT
(V) |
Adj. VOUT
(V) |
VDROPOUT @Rated ILOAD
(V) |
Rated ILOAD
(mA) |
ICC
(µA) |
Output Voltage Noise
(µV RMS) |
Ref. Bypass |
Low Batt./ Pwr. Fail Out |
Watchdog |
Reverse Batt. Protect. |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
min |
max |
typ |
max |
typ |
max w/pins |
See Notes |
| MAX8863 |
1 |
2.5 |
5.5 |
|
1.25 |
5.5 |
0.13 |
120 |
170 |
220 |
No |
No |
No |
Yes |
-40 to +85 |
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9 |
$0.71 @1k |
| MAX8864 |
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$0.71 @1k |
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See All Linear Regulators (149)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
More Information
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Information Index
Document Ref.: 19-0466
Rev 3;
2011-05-31
This page last modified: 2011-05-31
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