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MAX1763
1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter
High-Power Low-Noise 1MHz Step-Up DC-DC Converter
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Status
Active: In Production.
Description
The MAX1763 is a high-efficiency, low-noise, step-up DC-DC converter intended for use in battery-powered wireless applications. This device maintains exceptionally low quiescent supply current (110µA) despite its high 1MHz operating frequency. Small external components and a tiny package make this device an excellent choice for small hand-held applications that require the longest possible battery life.
The MAX1763 uses a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources, such as one to three alkaline or NiCd/NiMH cells or a single Lithium-ion (Li+) cell. Maxim's proprietary Idle Mode™ circuitry significantly improves efficiency at light load currents while smoothly transitioning to fixed-frequency PWM operation at higher load currents to maintain excellent full-load efficiency. Low-noise, forced-PWM mode is available for applications that require constant-frequency operation at all load currents. The MAX1763 may also be synchronized to an external clock to protect sensitive frequency bands in communications equipment.
The MAX1763 includes an on-chip linear gain block that can be used to build a high-power external linear regulator or as a low-battery comparator. Soft-start and current limit functions permit optimization of efficiency, external component size, and output voltage ripple.
The MAX1763 is available in a space-saving 16-pin QSOP package or a high-power (1.5W) 16-pin TSSOP-EP package.
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Data Sheet
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An evaluation kit is available: MAX1763EVKIT
Key Features
- Up to 94% Efficiency
- +0.7V to +5.5V Input Voltage Range
- 1.1V Guaranteed Startup Input Voltage
- Up to 1.5A Output
- Fixed 3.3V Output or Adjustable (2.5V to 5.5V)
- 1MHz PWM Synchronous-Rectified Topology
- 1µA Logic-Controlled Shutdown
- Analog Gain Block for Linear-Regulator or Low-Battery Comparator
- Adjustable Current Limit and Soft-Start
- 1.5W TSSOP Package Available
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Applications/Uses
- Digital Cordless Phones
- Handheld Instruments (PDAs, Palmtops)
- Palmtop Computers
- PCS Phones
- Personal Communicators
- Wireless Handsets
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Key Specifications:
| Step-Up Switching Regulators |
| Part Number |
VIN
(V) |
VIN
(V) |
VOUT
(V) |
VOUT
(V) |
Preset VOUT
(V) |
Max. IOUT
(A) |
Max. IOUT
(A) |
Output Adjust. Method |
DC-DC Outputs |
Oper. Freq.
(kHz) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
min |
max |
≥ |
≤ |
max w/pins |
See Notes |
| MAX1763 |
0.7 |
5.5 |
2.5 |
5.5 |
3.3 |
1.5 |
1.5 |
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1 |
1000 |
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33.2 |
$2.96 @1k |
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See All Step-Up Switching Regulators (91)
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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
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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| MAX1763EEE
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Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16-1*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX1763EEE+
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Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1763EEE+T
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Active |
QSOP;16 pin;30.9 mm²
Outline Drawing:21-0055 (PDF)
Land Pattern: 90-0167 (PDF)
Use pkgcode/variation: E16+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1763EEE-T
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Active |
QSOP;16 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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| MAX1763EUE
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Active |
TSSOP-EP;16 pin;33.2 mm²
Outline Drawing:21-0108 (PDF)
Land Pattern: 90-0120 (PDF)
Use pkgcode/variation: U16E-3*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX1763EUE+
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Active |
TSSOP-EP;16 pin;33.2 mm²
Outline Drawing:21-0108 (PDF)
Land Pattern: 90-0120 (PDF)
Use pkgcode/variation: U16E+3*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1763EUE+T
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Active |
TSSOP-EP;16 pin;33.2 mm²
Outline Drawing:21-0108 (PDF)
Land Pattern: 90-0120 (PDF)
Use pkgcode/variation: U16E+3*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX1763EUE-T
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Active |
TSSOP-EP;16 pin;33.2 mm²
Outline Drawing:21-0108 (PDF)
Land Pattern: 90-0120 (PDF)
Use pkgcode/variation: U16E-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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Similar Products by Function
| MAX1700, MAX1701 |
1 Cell to 3 Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters |
| MAX1703 |
1-Cell to 3-Cell, High Power (1.5A), Low-Noise, Step-Up DC-DC Converter |
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Evaluation Kits
Products with Similar Part Numbers
Didn't Find What You Need?
Information Index
Document Ref.: 19-1698
Rev 2;
2011-05-02
This page last modified: 2011-05-02
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