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MAX15109
High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator with VID Control
Smallest (2mm x 2.5mm), 8A, DC-DC Solution with Integrated MOSFETs in the Market
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Status
Active: In Production.
Description
The MAX15109 high-efficiency, current-mode, synchronous step-down switching regulator with integrated power switches deliver up to 8A of output current. This regulator operates from 2.7V to 5.5V and provides four output voltages using two VID control inputs.
This IC utilizes a current-mode control architecture with a high gain transconductance error amplifier. The current-mode control architecture facilitates easy compensation design and ensures cycle-by-cycle current limit with fast response to line and load transients.
This regulator offers skip-mode functionality to reduce current consumption and achieve a higher efficiency at light loads. The low RDS(ON) integrated switches ensure high efficiency at heavy loads while minimizing critical inductance, making the layout design a much simpler task with respect to discrete solutions. The high switching frequency (1MHz), along with the PWM current-mode architecture allows for a compact, all ceramic capacitor design.
The IC features a capacitor-programmable slew-rate control to reduce input current at the startup and when the output changes state under VID control. Internal control circuitry ensures safe-startup into a prebiased output. Power sequencing is controlled with the enable input and power-good output.
The IC is available in a 20-bump (4 x 5 array), 2.5mm x 2mm, WLP package and is fully specified over the -40°C to +85°C temperature range.
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Data Sheet
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An evaluation kit is available: MAX15109EVKIT
Key Features
- Continuous 8A Output Current Over Temperature
- Efficiency Over 90%
- ±1% Accuracy Over Load, Line, and Temperature
- Operate from a 2.7V to 5.5V Supply
- VID Control Inputs for Selecting Output Voltage
- Programmable Slew-Rate Control
- Safe Startup into Prebiased Output
- 1MHz Switching Frequency
- Stable with Low-ESR Ceramic Output Capacitors
- Enable Input and Power-Good Output for Power-Supply Sequencing
- Cycle-by-Cycle Overcurrent Protection Faults
- Fully Protected Against Overcurrent and Overtemperature
- Input Undervoltage Lockout
- 20-Bump (4 x 5 Array), 2.5mm x 2mm, WLP Package
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Applications/Uses
- DDR Memory
- Distributed Power Systems
- Notebook Power
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Key Specifications:
| Step-Down Switching Regulators |
| Part Number |
VIN
(V) |
VIN
(V) |
VOUT
(V) |
VOUT
(V) |
Preset VOUT
(V) |
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 |
| MAX15109 |
2.7 |
5.5 |
0.675 |
0.9 |
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8 |
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1 |
1000 |
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5.2 |
$4.30 @1k |
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See All Step-Down Switching Regulators (288)
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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
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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| MAX15109/10EVKIT#
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Active |
KIT;
Land Pattern: Not Available
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See data sheet
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| MAX15109/10EVKIT+
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Active |
KIT;
Land Pattern: Not Available
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See data sheet
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| MAX15109EWP+T
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Active |
WLP;20 pin;5.2 mm²
Outline Drawing:21-0505 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: W202D2Z+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
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
| MAX15108 |
High-Efficiency, 8A, Current-Mode Synchronous Step-Down Switching Regulator |
| MAX15112 |
High-Efficiency, 12A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches |
| MAX15118 |
High-Efficiency, 18A, Current-Mode Synchronous Step-Down Regulator with Integrated Switches |
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Evaluation Kits
Products with Similar Part Numbers
Didn't Find What You Need?
Information Index
Document Ref.: 19-5918
Rev 1;
2011-10-20
This page last modified: 2012-01-03
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