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MAX5090, MAX5090A, MAX5090B, MAX5090C
2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters
Designed to Withstand Harsh Automotive Environments
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Status
| Part Number |
Status |
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MAX5090
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Active: In Production. |
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MAX5090A
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Active: In Production. See Ordering Information for details. |
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MAX5090B
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Active: In Production. |
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MAX5090C
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Active: In Production. See Ordering Information for details. |
Description
The MAX5090A/B/C easy-to-use, high-efficiency, high-voltage
step-down DC-DC converters operate from an
input voltage up to 76V, and consume only 310µA quiescent
current at no load. This pulse-width-modulated
(PWM) converter operates at a fixed 127kHz switching
frequency at heavy loads, and automatically switches
to pulse-skipping mode to provide low quiescent current
and high efficiency at light loads. The MAX5090
includes internal frequency compensation simplifying
circuit implementation. The device can also be synchronized
with external system clock frequency in a
noise-sensitive application. The MAX5090 uses an
internal low on-resistance and a high-voltage DMOS
transistor to obtain high efficiency and reduce overall
system cost. This device includes undervoltage lockout,
cycle-by-cycle current limit, hiccup-mode output
short-circuit protection, and overtemperature shutdown.
The MAX5090 delivers up to 2A output current. External
shutdown is included, featuring 19µA (typ) shutdown
current. The MAX5090A/MAX5090B versions have fixed
output voltages of 3.3V and 5V, respectively, while the
MAX5090C features an adjustable 1.265V to 11V output voltage.
The MAX5090 is available in a space-saving 16-pin thin
QFN package (5mm x 5mm) and operates over the
automotive temperature range (-40°C to +125°C).
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Data Sheet
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An evaluation kit is available: MAX5090EVKIT
Key Features
- Wide Input Voltage Range: 6.5V to 76V
- Fixed (3.3V, 5V) and Adjustable (1.265V to 11V) Output-Voltage Versions
- 2A Output Current
- Efficiency Up to 92%
- Internal 0.26Ω High-Side DMOS FET
- 310µA Quiescent Current at No Load
- 19µA Shutdown Current
- Internal Frequency Compensation
- Fixed 127kHz Switching Frequency
- External Frequency Synchronization
- Thermal Shutdown and Short-Circuit Current Limit
- -40°C to +125°C Automotive Temperature Range
- 16-Pin (5mm x 5mm) Thin QFN Package
- Capable of dissipating 2.67W at +70°C
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Applications/Uses
- Automotive
- Distributed Power
- Industrial
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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) |
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 |
| MAX5090 |
6.5 |
76 |
1.265 |
11 |
5 |
2 |
2 |
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1 |
125 |
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26 |
$3.41 @1k |
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See All Step-Down Switching Regulators (284)
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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
Product Guides
Reliability Reports
| Reliability Report: |
MAX5090.pdf |
| Show FIT data for: |
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| Request Reliability Report for: |
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Software/Models
Ordering Information
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Part Number
|
Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX5090AATE
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655-3*
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-40°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX5090AATE+
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090AATE+T
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090AATE-T
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Active |
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QFN;16 pin
Land Pattern: Not Available
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-40°C to +125°C
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See data sheet
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| MAX5090AATE/V+
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N/A |
No Longer Available |
MAX5090AATE+
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090AATE/V+T
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N/A |
No Longer Available |
MAX5090AATE+
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QFN;
Land Pattern: Not Available
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-40°C to +125°C
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See data sheet
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| MAX5090BATE
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655-3*
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-40°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX5090BATE+
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090BATE+T
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090BATE-T
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Active |
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QFN;16 pin
Land Pattern: Not Available
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-40°C to +125°C
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See data sheet
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Part Number
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Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX5090CATE
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|
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655-3*
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-40°C to +125°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX5090CATE+
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|
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Active |
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090CATE+T
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|
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Active |
|
TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090CATE-T
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Active |
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QFN;16 pin
Land Pattern: Not Available
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-40°C to +125°C
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See data sheet
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| MAX5090CATE/GG8
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Active |
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TQFN;
Land Pattern: Not Available
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-40°C to +125°C
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See data sheet
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| MAX5090CATE/V+
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N/A |
No Longer Available |
MAX5090CATE+
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TQFN;16 pin;26 mm²
Outline Drawing:21-0140 (PDF)
Land Pattern: 90-0073 (PDF)
Use pkgcode/variation: T1655+3*
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-40°C to +125°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX5090CATE/V+T
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N/A |
No Longer Available |
MAX5090CATE+
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QFN;
Land Pattern: Not Available
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-40°C to +125°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.: 19-3872
Rev 0;
2006-05-27
This page last modified: 2007-02-20
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