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FAN5602MP45X Folha de dados(PDF) 1 Page - Fairchild Semiconductor

Nome de Peças FAN5602MP45X
Descrição Electrónicos  Universal (Step-Up/Step-Down) Charge Pump Regulated DC/DC Converter
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Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN5602MP45X Folha de dados(HTML) 1 Page - Fairchild Semiconductor

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© 2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
May 2007
FAN5602 Rev. 1.5.1
FAN5602 — Universal (Step-Up/Step-Down)
Charge Pump Regulated DC/DC Converter
Features
Low-Noise, Constant-Frequency Operation at Heavy
Load
High-Efficiency, Pulse-Skip (PFM) Operation at Light
Load
Switch Configurations (1:3, 1:2, 2:3, 1:1, 3:2, 2:1, 3:1)
92% Peak Efficiency
Input Voltage Range: 2.7V to 5.5V
Output Current: 3.3V, 200mA at VIN = 3.6V
±3% Output Voltage Accuracy
ICC < 1µA in Shutdown Mode
1MHz Operating Frequency
Shutdown Isolates Output from Input
Soft-Start Limits Inrush Current at Start-up
Short-Circuit and Over-Temperature Protection
Minimum External Component Count
No Inductors
Applications
Cell Phones
Handheld Computers
Portable RF Communication Equipment
Core Supply to Low-Power Processors
Low-Voltage DC Bus
DSP Supplies
Description
The FAN5602 is a universal switched capacitor DC/DC
converter capable of step-up or step-down operation.
Due to its unique adaptive fractional switching topology,
the device achieves high efficiency over a wider input/
output voltage range than any of its predecessors. The
FAN5602 utilizes resistance-modulated loop control,
which produces lower switching noise than other topolo-
gies. Depending upon actual load conditions, the device
automatically switches between constant-frequency and
pulse-skipping modes of operation to extend battery life.
The FAN5602 produces a fixed regulated output within
the range of 2.7V to 5.5V from any type of voltage
source. High efficiency is achieved under various input/
output voltage conditions because an internal logic circuit
automatically reconfigures the system to the best possi-
ble topology. Only two 1µF bucket capacitors and one
10µF output capacitor are needed. During power on,
soft-start circuitry prevents excessive current drawn from
the supply. The device is protected against short-circuit
and over-temperature conditions.
The FAN5602 is available with 3.3V, 4.5V, and 5.0V out-
put voltage. Any other output voltage option within the
1.5V to 5V range is available upon request. The
FAN5602 is available 3x3mm 8-lead MLP packages.
Ordering Information
Note:
1. Reference MLP08D Option B ONLY.
Application Diagram
Figure 2. Typical Application Diagram
Part Number
Package(1)
Pb-Free
Output Voltage, VNOM
FAN5602MP33X
3x3mm 8-Lead MLP
Yes
3.3V
FAN5602MP45X
3x3mm 8-Lead MLP
Yes
4.5V
FAN5602MP5X
3x3mm 8-Lead MLP
Yes
5.0V
FAN5602
COUT
CB
CIN
GND
VIN
VOUT
C2+
C1+
C1-
C2-
ENABLE
Input 2.7V to 5.5V
2
1
3
4
5
8
7
6


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