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MAX1819
500mA Low-Dropout Linear Regulator in UCSP
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Status
Active: In Production.
Description
The MAX1819 low-dropout linear regulator operates from a 2.5V to 5.5V supply and delivers a guaranteed 500mA load current with low 120mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see the Selector Guide in the full data sheet) or can be adjusted from 1.25V to 5V with an external resistive-divider.
An internal PMOS pass transistor allows the low 125µA supply current to remain independent of load, making this device ideal for portable battery-operated equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, base stations, and notebook computers.
Other features include an active-low, open-drain reset output that indicates when the output is out of regulation, a 0.1µA shutdown, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 6-pin UCSP™ package.
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Data Sheet
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Key Features
- Guaranteed 500mA Output Current
- Low 90mV Dropout at 500mA
- ±1% Initial Output Accuracy
- Preset Output at 1.5V, 1.8V, 2V, 2.5V, 3.3V, 5V
- Adjustable Output from 1.25V to 5V
- Power-OK Output
- Low 125µA Ground Current
- 0.1µA Shutdown Current
- Thermal Overload Protection
- Output Current Limit
- Tiny 840mW 6-Pin UCSP Package
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Applications/Uses
- Base Stations
- Cellular and Cordless Telephones
- Docking Stations
- Notebook Computers
- Palmtop Computers
- Personal Digital Assistants (PDAs)
- USB Hubs
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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 |
POK/Reset Thresh.
(V) |
Watchdog |
Reverse Batt. Protect. |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
| min |
max |
min |
max |
typ |
max |
typ |
nom |
max w/pins |
| MAX1819 |
1 |
2.5 |
5.5 |
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1.25 |
5 |
0.125 |
500 |
250 |
115 |
No |
No |
Vout-7% |
No |
No |
-40 to +85 |
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2.5 |
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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 Circuit
Reliability Reports
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX1819EBL18-T
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Active |
UCSP;6 pin;2.5 mm²
Outline Drawing:21-0093 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: B9-3*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX1819EBL50-T
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Active |
UCSP;6 pin;2.5 mm²
Outline Drawing:21-0093 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: B9-3*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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More Information
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Information Index
Document Ref.: 19-2072
Rev 0;
2002-05-08
This page last modified: 2009-09-14
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