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MAX8891, MAX8892
High PSRR, Low-Dropout, 150mA Linear Regulators
Low-Dropout Linear Regulators Designed for Ultra-Low Noise in a SC70 Package
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Status
Active: In Production.
Description
The MAX8891/MAX8892 low-dropout (LDO) linear regulators are designed to deliver up to 150mA continuous output current. These regulators achieve a low 120mV dropout for 120mA load current.
The MAX8891 only requires an input/output capacitor, hence achieving the smallest PCB area. The
MAX8892's output voltage can be adjusted with an external divider.
The MAX8891 is preset to a variety of voltages in the 1.5V to 4.5V range. Designed with a p-channel
MOSFET series pass transistor, the MAX8891/MAX8892 maintain very low ground current (40µA).
The regulators are designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8891/MAX8892 require only 1µF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1µA.
These regulators are available in a tiny 5-pin SC70 package.
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Data Sheet
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Key Features
- Space-Saving SC70 Package
- 65dB PSRR at 10kHz
- 120mV Dropout at 120mA Load
- Stable with 1µF Ceramic Capacitor for Any Load
- Guaranteed 150mA Output
- Only Need Input and Output Capacitors (MAX8891)
- Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3V, 3.3V, 4.5V (MAX8891) and Adjustable (MAX8892)
- Low 40µA Ground Current
- Excellent Load/Line Transient
- Overcurrent and Thermal Protection
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Applications/Uses
- Base Stations
- Bluetooth Portable Radios and Accessories
- Cellular and Cordless Phones
- Digital Cameras
- PDA and Palmtop Computers
- Personal Stereos
- Portable and Battery-Powered Equipment
- Wireless LANs
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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) |
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 |
typ |
max w/pins |
See Notes |
| MAX8891 |
1 |
2 |
6 |
| 1.5 | | 1.8 | | 2.5 | | 2.6 | | 2.8 | | 2.85 | | 2.9 | | 3.1 | | 3.3 | | 4.5 |
|
- |
- |
0.15 |
150 |
230 |
No |
No |
No |
No |
-40 to +85 |
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5.3 |
$0.45 @1k |
| MAX8892 |
- |
1.225 |
4.5 |
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$0.45 @1k |
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See All Linear Regulators (146)
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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 Circuits
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-4537
Rev 0;
2009-04-28
This page last modified: 2009-04-28
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