FAN2002MPX Fairchild Semiconductor, FAN2002MPX Datasheet

IC CONV DC/DC 1A ADJ STPDWN 6MLP

FAN2002MPX

Manufacturer Part Number
FAN2002MPX
Description
IC CONV DC/DC 1A ADJ STPDWN 6MLP
Manufacturer
Fairchild Semiconductor
Type
Step-Down (Buck)r
Datasheet

Specifications of FAN2002MPX

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
0.8 ~ 5.5 V
Current - Output
1A
Frequency - Switching
1.3MHz
Voltage - Input
2.5 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
6-MLP
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
FAN2002MPXTR
FAN2002MPX_NL
FAN2002MPX_NLTR
FAN2002MPX_NLTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN2002MPX
Manufacturer:
Fairchild/ON Semiconductor
Quantity:
1 473
Part Number:
FAN2002MPX
Manufacturer:
ON Semiconductor
Quantity:
5 200
Part Number:
FAN2002MPX
Manufacturer:
FAIRCHILD/仙童
Quantity:
3 423
©2005 Fairchild Semiconductor Corporation
FAN2001/FAN2002 Rev. 1.0.2
FAN2001/FAN2002
1A High-Efficiency Step-Down DC-DC Converter
Features
■ 96% Efficiency, Synchronous Operation
■ Adjustable Output Voltage Options from 0.8V to V
■ 2.5V to 5.5V Input Voltage Range
■ Up to 1A Output Current
■ Fixed Frequency 1.3MHz PWM Operation
■ High Efficiency Power Save Mode
■ 100% Duty Cycle Low Dropout Operation
■ Soft Start
■ Output Over-Voltage Protection
■ Dynamic Output Voltage Positioning
■ 25 µ A Quiescent Current
■ Thermal Shutdown and Short Circuit Protection
■ Pb-Free 3x3mm 6-Lead MLP Package
Applications
■ Pocket PCs, PDAs
■ Cell Phones
■ Battery-Powered Portable Devices
■ Digital Cameras
■ Hard Disk Drives
■ Set-Top-Boxes
■ Point-of-Load Power
■ Notebook Computers
■ Communications Equipment
Typical Application
10µF
C
IN
PGND
V
EN
IN
1
2
3
FAN2001
(AGND)
P1
6
5
4
SW
NC
FB
3.3µH
R2
R1
10KΩ
5KΩ
Figure 1. Typical Application
IN
C
2 x 10µF
OUT
1.2V (1A)
V
OUT
1
1.2V (1A)
Description
Designed for use in battery-powered applications, the FAN2001/
FAN2002 is a high-efficiency, low-noise synchronous PWM cur-
rent mode and Pulse Skip (Power Save) mode DC-DC con-
verter. It can provide up to 1A of output current over a wide input
range from 2.5V to 5.5V. The output voltage can be externally
adjusted over a wide range of 0.8V to 5.5V by means of an
external voltage divider.
At moderate and light loads, pulse skipping modulation is used.
Dynamic voltage positioning is applied, and the output voltage is
shifted 0.8% above nominal value for increased headroom dur-
ing load transients. At higher loads the system automatically
switches over to current mode PWM control, operating at 1.3
MHz. A current mode control loop with fast transient response
ensures excellent line and load regulation. To achieve high effi-
ciency and ensure long battery life, the quiescent current is
reduced to 25µA in Power Save mode, and the supply current
drops below 1µA in shut-down mode. The FAN2001/FAN2002 is
available in a 3x3mm 6-lead MLP package.
V
OUT
R1
5K
2 x 10µF
R2
10K
3.3µH
L1
PGND
SW
FB
1
2
3
FAN2002
(AGND)
P1
6
5
4
www.fairchildsemi.com
EN
V
PV
IN
IN
April 2005
10µF

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FAN2002MPX Summary of contents

Page 1

... FAN2001 FAN2001/FAN2002 Rev. 1.0.2 ©2005 Fairchild Semiconductor Corporation Description Designed for use in battery-powered applications, the FAN2001/ FAN2002 is a high-efficiency, low-noise synchronous PWM cur- IN rent mode and Pulse Skip (Power Save) mode DC-DC con- verter. It can provide output current over a wide input range from 2 ...

Page 2

Pin Assignment PGND Pin Description FAN2001 (3x3mm 6-Lead MLP) Pin No. Pin Name P1 AGND PGND FAN2002 (3x3mm 6-Lead MLP) Pin No. Pin Name P1 AGND 1 FB ...

Page 3

Absolute Maximum Ratings Voltage On Any Other Pin Lead Soldering Temperature (10 seconds) Junction Temperature Storage Temperature Thermal Resistance-Junction to Tab ( θ Electrostatic Discharge Protection (ESD) Level (Note 3) Recommended Operating Conditions Parameter Supply ...

Page 4

Electrical Characteristics 0.6V(min. 2.5V) to 5.5V OUT Unless otherwise noted. Typical values are at T Symbol Parameter V Input Voltage IN I Quiescent Current Q Shutdown Supply Current Undervoltage Lockout Threshold V Enable High ...

Page 5

Typical Performance Characteristics T = 25° 10µ 20µ 3.3µ OUT Efficiency vs. Load Current 100 3. 3.6V OUT IN ...

Page 6

Typical Performance Characteristics T = 25° 10µ 20µ 3.3µ OUT PWM Mode Time (1µs/div) Load Transient Response 100mA V = 1.2V OUT Time (10µs/div) Start-Up Response Time (100µs/div) FAN2001/FAN2002 Rev. 1.0.2 ...

Page 7

Block Diagram DIGITAL SOFT START FB 0.8V GND SLOPE COMPENSATION Detailed Operation Description The FAN2001/FAN2002 is a step-down converter operating in a current-mode PFM/PWM architecture with a typical switching frequency of 1.3MHz. At moderate to heavy loads, the converter operates ...

Page 8

UVLO and Soft Start The reference and the circuit remain reset until the V its UVLO threshold. The FAN2001/FAN2002 has an internal soft-start circuit that limits the in-rush current during start-up. This prevents possible voltage drops of the input voltage ...

Page 9

Figure 6. Recommended PCB Layout (FAN2002) FAN2001/FAN2002 Rev. 1.0.2 Therefore, use wide traces for high current paths and place the input capacitor, the inductor, and the output capacitor as close as possible to the integrated circuit terminals. In order to ...

Page 10

... Mechanical Dimensions 3x3mm 6-Lead MLP Ordering Information Product Number FAN2001 FAN2002 FAN2001/FAN2002 Rev. 1.0.2 Output Voltage Package Type Adjustable 3x3mm 6-Lead MLP Adjustable 3x3mm 6-Lead MLP 10 Order Code FAN2001MPX FAN2002MPX www.fairchildsemi.com ...

Page 11

... TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended exhaustive list of all such trademarks.  ACEx™ FAST ActiveArray™ FASTr™ Bottomless™ FPS™ CoolFET™ FRFET™ CROSSVOLT™ GlobalOptoisolator™ ...

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