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MAX1658, MAX1659
350mA, 16.5V Input, Low-Dropout Linear Regulators
Battery-Saving Linear Regulator Consumes Only 30µA and Delivers 350mA
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Status
Active: In Production.
Description
The MAX1658/MAX1659 linear regulators maximize battery life by combining ultra-low supply currents and low dropout voltages. They feature Dual Mode™ operation, which presets the output to 3.3V (MAX1658) or 5V (MAX1659), or permits it to be adjusted between 1.25V and 16V. The regulator supplies up to 350mA, with a typical dropout of 650mV for the MAX1658 and 490mV for the MAX1659. With their P-channel MOSFET pass transistor, these devices maintain a low quiescent current from zero output current to the full 350mA, even in dropout. They support input voltages ranging from 2.7V to 16.5V.
The MAX1658/MAX1659 feature a 1µA shutdown mode, reverse battery protection, short-circuit protection, and thermal shutdown. They are available in a special high-power (1.2W), 8-pin SO package designed specifically for compact applications.
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Data Sheet
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Key Features
- Wide Input Voltage Range: 2.7V to 16.5V
- Low, 490mV Dropout at 350mA Output Current (MAX1659)
- 30µA Supply Current
- 1µA Max Shutdown Current
- High-Power (1.2W) 8-Pin SO Package
- Dual Mode Operation Output:
- Fixed 3.3V (MAX1658)
- Fixed 5.0V (MAX1659)
- or Adjustable (1.25V to 16V)
- Thermal Overload Protection
- Current-Limit Protection
- Reverse Battery Protection
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Applications/Uses
- Cell Phones
- Digital Cordless Phones
- Electronic Planners
- Handheld Instruments (PDAs, Palmtops)
- Modems
- Palmtop Computers
- PCMCIA Cards
- PCS Phones
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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 |
| MAX1658 |
1 |
2.7 |
16.5 |
3.3 |
1.25 |
16 |
0.65 |
350 |
60 |
2500 |
No |
No |
No |
Yes |
-40 to +85 |
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31 |
$2.17 @1k |
| MAX1659 |
5 |
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$2.17 @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 Circuit
Application Notes
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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| MAX1658C/D
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Active |
DICE SALES;NA pin;DICE;
Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
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See data sheet
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| MAX1658ESA
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Active |
SOIC(N);8 pin;31 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-10F*
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-40°C to +85°C
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See data sheet
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| MAX1658ESA+
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Active |
SOIC(N);8 pin;31 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+10F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1658ESA+T
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Active |
SOIC(N);8 pin;31 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+10F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1658ESA-T
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Active |
N.SO;8 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX1659C/D
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Active |
DICE SALES;NA pin;DICE;
Land Pattern: Not Applicable
Use pkgcode/variation: DICE*
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See data sheet
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| MAX1659ESA
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Active |
SOIC(N);8 pin;31 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8-10F*
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-40°C to +85°C
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See data sheet
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| MAX1659ESA+
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Active |
SOIC(N);8 pin;31 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+10F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1659ESA+T
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Active |
SOIC(N);8 pin;31 mm²
Outline Drawing:21-0041 (PDF)
Land Pattern: 90-0096 (PDF)
Use pkgcode/variation: S8+10F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1659ESA-T
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Active |
N.SO;8 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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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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Information Index
Document Ref.: 19-1263
Rev 0;
1997-07-01
This page last modified: 2007-07-19
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