FAN2106EMPX Fairchild Semiconductor, FAN2106EMPX Datasheet

IC BUCK SYNC ADJ 6A 25MLP

FAN2106EMPX

Manufacturer Part Number
FAN2106EMPX
Description
IC BUCK SYNC ADJ 6A 25MLP
Manufacturer
Fairchild Semiconductor
Series
TinyBuck™r
Type
Step-Down (Buck)r
Datasheet

Specifications of FAN2106EMPX

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
3 ~ 21 V
Current - Output
6A
Frequency - Switching
300kHz ~ 600kHz
Voltage - Input
3 ~ 24 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
25-MLP
Power - Output
2.8W
Output Voltage
3.2 V
Output Current
6 A
Switching Frequency
600 KHz
Input / Supply Voltage (max)
24 V
Input / Supply Voltage (min)
3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Efficiency
95 %
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Output Power
2.8 W
Supply Current
8 mA
For Use With
FEB167 - BOARD EVAL FOR FAN2106
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FAN2106EMPXTR
© 2009 Fairchild Semiconductor Corporation
FAN2106 • Rev. 1.1.0
FAN2106 — TinyBuck™
3-24V Input, 6A, High-Efficiency,
Integrated Synchronous Buck Regulator
Features
Applications
Ordering Information
FAN2106EMPX
Part Number
FAN2106MPX
For Fairchild’s definition of please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
6A Output Current
Wide Input Range: 3V - 24V
Output Voltage Range: 0.8V to 80% V
Over 95% Peak Efficiency
1% Reference Accuracy Over Temperature
Programmable Frequency Operation: 200KHz to
600KHz
Fully Synchronous Operation with Integrated
Schottky Diode on Low-Side MOSFET Boosts
Efficiency
Internal Bootstrap Diode
Internal Soft-Start
Power-Good Signal
Starts on Pre-Biased Outputs
Accepts Ceramic Capacitors on Output
External Compensation for Flexible Design
Programmable Current Limit
Under-Voltage, Over-Voltage, and Thermal
Protections
5x6mm, 25-Pin, 3-Pad MLP Package
Servers & Telecom
Graphics Cards & Displays
Computing Systems
Point-of-Load Regulation
Set-Top Boxes & Game Consoles
Temperature Range
-10°C to 85°C
-40°C to 85°C
Operating
Molded Leadless Package (MLP) 5x6mm
Molded Leadless Package (MLP) 5x6mm
IN
Package
Description
The FAN2106 TinyBuck™ is a highly efficient, small-
footprint,
synchronous buck regulator.
The FAN2106 contains both synchronous MOSFETs
and a controller/driver with optimized interconnects in
one package, which enables designers to solve high-
current requirements in a small area with minimal
external components. Integration helps to minimize
critical
simpler and more efficient compared to discrete
solutions.
The
compensation, programmable switching frequency,
and current limit. These features allow design
flexibility and optimization. High-frequency operation
allows for all-ceramic solutions.
The summing current-mode modulator uses lossless
current sensing for current feedback and over-current
protection. Voltage feedforward helps operation over
a wide input voltage range.
Fairchild’s
combined with low-R
thermally efficient MLP package, provide the ability to
dissipate high power in a small package.
Output over-voltage, under-voltage, over-current, and
thermal shutdown protections help protect the device
from damage during fault conditions. FAN2106
prevents pre-biased output discharge during startup
in point-of-load applications.
Related Application Notes
AN-8022 — TinyCalc™ Calculator
FAN2106
inductances,
constant-frequency,
advanced
provides
DS(ON)
Status
making
Green
Green
BiCMOS
Eco
internal MOSFETs and a
for
component
Packing Method
6A,
power
Tape and Reel
Tape and Reel
external
August 2009
www.fairchildsemi.com
integrated
process,
layout
loop

Related parts for FAN2106EMPX

FAN2106EMPX Summary of contents

Page 1

... Set-Top Boxes & Game Consoles Ordering Information Operating Part Number Temperature Range FAN2106MPX -10°C to 85°C FAN2106EMPX -40°C to 85°C For Fairchild’s definition of please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 Description The FAN2106 TinyBuck™ highly efficient, small- ...

Page 2

... Typical Application Diagram Block Diagram © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 Figure 1. Typical Application Figure 2. Block Diagram 2 www.fairchildsemi.com ...

Page 3

... No Connect. This pin is not used. Ramp Amplitude. A resistor (R 25 RAMP amplitude and provides voltage feedforward functionality. © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 BOOT ) from this pin to AGND can be used to program the current- ILIM ) from this pin to AGND sets the PWM switching ...

Page 4

... Typical thermal resistance when mounted on a four-layer, two-ounce PCB, as shown in Figure 26. Actual results are dependent on mounting method and surface related to the design. © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 Conditions Conditions VCC to AGND VIN to PGND FAN2106MPX FAN2106EMPX Parameter P1 (Q2) P2 (Q1 25° Min. ...

Page 5

... Conditions SW = Open 0.7V 5V 600KHz SW Shutdown Rising V CC Hysteresis R = 50KΩ 24KΩ T 16V , 1. 30KΩ, IN OUT 200KΩ RAMP FAN2106MPX 25°C A FAN2106EMPX 25° 5V 2.2V CC COMP 1.2V CC COMP V = 0.8V 25° Open 500KHz 1.8V, ILIM SW OUT R = 200KΩ, 16 Consecutive Cycles RAMP 25° ...

Page 6

... EN Pull-Up Resistance EN Discharge Current FB OK Drive Resistance PGOOD Threshold (Compared REF PGOOD Output Low Note: 2. Specifications guaranteed by design and characterization; not production tested. 3. See Figure 4 for Temperature Coefficient © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 (Continued) Conditions Auto-Restart Mode, V ...

Page 7

... R T Figure 6. Frequency vs. R 1.60 1.40 1.20 1.00 0.80 0.60 -50 0 Temperature ( Figure 8. R vs. Temperature, Normalized © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 1.20 1.10 1.00 0.90 0.80 50 100 150 - vs. Temperature, Figure 5. Reference Bias Current (I FB 1.02 1.01 1.00 ...

Page 8

... OUT 100 =12V IN 80 300KHz Load (A) Figure 13. 1.8V Efficiency Over Frequency vs. OUT Load (Circuit Value Changes) © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 FAN2106 Figure 10. Application Circuit: 1.8V 1400 1200 1000 800 600 18V IN 400 200 vs. Load Figure 12. 1.8V ...

Page 9

... Typical Performance Characteristics Typical operating characteristics using the circuit shown in Figure 10. V Figure 15. SW and V OUT Figure 17. Transient Response, 2-6A Load EN Figure 19. Startup, 3A Load © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 (Continued) V OUT SW Ripple, 6A Load Figure 16. Startup with 1V Pre-Bias on V ...

Page 10

... To avoid skipping the soft-start cycle necessary to apply V before V reaches its UVLO threshold. Normal IN CC sequence for powering up would be VIN VCC EN. © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 Soft-start time is a function of switching frequency. LIM is ≤ 1KΩ, the BIAS Cycling V and resets the IC ...

Page 11

... Thresholds are specified Specifications section. PGOOD does not assert HIGH until the fault latch is enabled (T1.0) (see Figure 22). © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 Application Information Bias Supply The FAN2106 requires a 5V supply rail to bias the IC and provide gate-drive energy. Connect a ≥ 1.0µf X5R or X7R decoupling capacitor between VCC and PGND ...

Page 12

... ILIM RAMP point varies slightly in an inverse relationship with respect to input voltage ( © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 (4) ILIM (5) The ILIM pin can source a 10µA current that can be used to establish a lower, temperature-dependent, current-limit threshold by connecting an external ...

Page 13

... IN Application note AN-8022 (TinyCalc™) calculate the compensation components. © 2009 Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 Recommended PCB Layout value, the modulator Good PCB layout and careful attention to temperature rise is essential for reliable operation of the regulator. ...

Page 14

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’ ...

Page 15

... Fairchild Semiconductor Corporation FAN2106 • Rev. 1.1.0 15 www.fairchildsemi.com ...

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