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Buck Regulator. FAN2110 Datasheet

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Buck Regulator. FAN2110 Datasheet
















FAN2110 Regulator. Datasheet pdf. Equivalent













Part

FAN2110

Description

Integrated Synchronous Buck Regulator



Feature


FAN2110 — TinyBuck™, 3-24V Input, 10 A, High-Efficiency, Integrated Synchron ous Buck Regulator August 2009 FAN211 0 — TinyBuck™ 3-24V Input, 10A, Hig h-Efficiency, Integrated Synchronous Bu ck Regulator Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Wide Input Voltage Range: 3V-24V Wi de Output Voltage Range: 0.8V to 80% VI N 10A Output Current 1% Reference Accuracy Ove.
Manufacture

Fairchild Semiconductor

Datasheet
Download FAN2110 Datasheet


Fairchild Semiconductor FAN2110

FAN2110; r Temperature Over 93% Peak Efficiency P rogrammable Frequency Operation: 200KHz to 600KHz Fully Synchronous Operation with Integrated Schottky Diode on Low-S ide MOSFET Boosts Efficiency Internal B ootstrap Diode Power-Good Signal Starts up on Pre-Bias Outputs Accepts Ceramic Capacitors on Output External Compensa tion for Flexible Design Programmable C urrent Limit Under.


Fairchild Semiconductor FAN2110

-Voltage, Over-Voltage, and Thermal Shut down Protections 5x6mm, 25-Pin, 3-Pad M LP Package Description The FAN2110 Tin yBuck™ is a highly efficient, small f ootprint, constant frequency, 10A integ rated synchronous Buck regulator. The F AN2110 contains both synchronous MOSFET s and a controller/driver with optimize d interconnects in one package, which e nables designers to .


Fairchild Semiconductor FAN2110

solve highcurrent requirements in a smal l area with minimal external components . Integration helps to minimize critica l inductances making component layout s impler and more efficient compared to d iscrete solutions. The FAN2110 provides for external loop compensation, progra mmable switching frequency, and current limit. These features allow design fle xibility and optim.





Part

FAN2110

Description

Integrated Synchronous Buck Regulator



Feature


FAN2110 — TinyBuck™, 3-24V Input, 10 A, High-Efficiency, Integrated Synchron ous Buck Regulator August 2009 FAN211 0 — TinyBuck™ 3-24V Input, 10A, Hig h-Efficiency, Integrated Synchronous Bu ck Regulator Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Wide Input Voltage Range: 3V-24V Wi de Output Voltage Range: 0.8V to 80% VI N 10A Output Current 1% Reference Accuracy Ove.
Manufacture

Fairchild Semiconductor

Datasheet
Download FAN2110 Datasheet




 FAN2110
August 2009
FAN2110 — TinyBuck™
3-24V Input, 10A, High-Efficiency, Integrated
Synchronous Buck Regulator
Features
ƒ Wide Input Voltage Range: 3V-24V
ƒ Wide Output Voltage Range: 0.8V to 80% VIN
ƒ 10A Output Current
ƒ 1% Reference Accuracy Over Temperature
ƒ Over 93% Peak Efficiency
ƒ Programmable Frequency Operation: 200KHz to
600KHz
ƒ Fully Synchronous Operation with Integrated
Schottky Diode on Low-Side MOSFET Boosts
Efficiency
ƒ Internal Bootstrap Diode
ƒ Power-Good Signal
ƒ Starts up on Pre-Bias Outputs
ƒ Accepts Ceramic Capacitors on Output
ƒ External Compensation for Flexible Design
ƒ Programmable Current Limit
ƒ Under-Voltage, Over-Voltage, and Thermal
Shutdown Protections
www.DataShƒeet4IUn.tceormnal Soft-Start
ƒ 5x6mm, 25-Pin, 3-Pad MLP Package
Applications
ƒ Servers & Telecom
ƒ Graphics Cards & Displays
ƒ Computing Systems
ƒ Point-of-Load Regulation
ƒ Set-Top Boxes & Game Consoles
Description
The FAN2110 TinyBuck™ is a highly efficient, small
footprint, constant frequency, 10A integrated
synchronous Buck regulator.
The FAN2110 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 inductances making component layout simpler
and more efficient compared to discrete solutions.
The FAN2110 provides for external loop 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 advanced BiCMOS power process,
combined with low-RDS(ON) internal MOSFETs and a
thermally efficient MLP package, provide the ability to
dissipate high power in a small package.
Output over-voltage, under-voltage, and thermal
shutdown protections help protect the device from
damage during fault conditions. FAN2110 also prevents
pre-biased output discharge during startup in point-of-
load applications.
Related Application Notes
AN-8022 — TinyCalc™ Calculator
Ordering Information
Operating
Part Number Temperature Range
FAN2110MPX
FAN2110EMPX
-10°C to 85°C
-40°C to 85°C
Package
Molded Leadless Package (MLP) 5x6mm
Molded Leadless Package (MLP) 5x6mm
Eco
Status
Green
Green
Packing
Method
Tape and Reel
Tape and Reel
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FAN2110 • Rev. 1.0.2
www.fairchildsemi.com




 FAN2110
Typical Application
Block Diagram
www.DataSheet4U.com
Figure 1. Typical Application Diagram
© 2008 Fairchild Semiconductor Corporation
FAN2110 • Rev. 1.0.2
Figure 2. Block Diagram
2
www.fairchildsemi.com




 FAN2110
Pin Configuration
Figure 3. MLP 5x6mm Pin Configuration (Bottom View)
Pin Definitions
Pin #
P1, 6-12
P2, 2-5
P3, 21-23
1
13
www.DataSheet4U.com
14
15
16
17
18
19
20
24
25
Name Description
SW Switching Node. Junction of high-side and low-side MOSFETs.
VIN Power Conversion Input Voltage. Connect to the main input power source.
PGND Power Ground. Power return and Q2 source.
BOOT
High-Side Drive BOOT Voltage. Connect through capacitor (CBOOT) to SW. The IC
includes an internal synchronous bootstrap diode to recharge the capacitor on this pin to
VCC when SW is LOW.
PGOOD
Power-Good Flag. An open-drain output that pulls LOW when FB is outside the limits
specified in electrical specs. PGOOD does not assert HIGH until the fault latch is enabled.
ENABLE. Enables operation when pulled to logic HIGH or left open. Toggling EN resets the
EN regulator after a latched fault condition. This input has an internal pull-up when the IC is
functioning normally. When a latched fault occurs, EN is discharged by a current sink.
VCC
Input Bias Supply for IC. The IC’s logic and analog circuitry are powered from this pin.
This pin should be decoupled to AGND through a > 2.2µF X5R / X7R capacitor.
AGND
Analog Ground. The signal ground for the IC. All internal control voltages are referred to
this pin. Tie this pin to the ground island/plane through the lowest impedance connection.
ILIM
Current Limit. A resistor (RILIM) from this pin to AGND can be used to program the current-
limit trip threshold lower than the internal default setting.
R(T)
Oscillator Frequency. A resistor (RT) from this pin to AGND sets the PWM switching
frequency.
FB Output Voltage Feedback. Connect through a resistor divider to the output voltage.
COMP
Compensation. Error amplifier output. Connect the external compensation network
between this pin and FB.
NC No Connect. This pin is not used.
RAMP
Ramp Amplitude. A resistor (RRAMP) connected from this pin to VIN sets the ramp amplitude
and provides voltage feedforward functionality.
© 2008 Fairchild Semiconductor Corporation
FAN2110 • Rev. 1.0.2
3
www.fairchildsemi.com




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