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Numéro de référence | FAN5601 | ||
Description | Regulated Step-Down Charge Pump DC/DC Converter | ||
Fabricant | Fairchild Semiconductor | ||
Logo | |||
1 Page
July 2005
www.DataSheet4U.com
FAN5601
Regulated Step-Down Charge Pump DC/DC Converter
Features
■ > 85% Peak Efficiency
■ Low EMI
■ Low Ripple
■ Output Voltage 1.3V/1.8V
■ Input Voltage Range: 2.2V to 5.5V
■ Output Current: Up to 250mA
■ ±2.5% Output Voltage Accuracy
■ 30µA Operating Current
■ ICC < 1µA in Shutdown Mode
■ 2MHz Operating Frequency
■ Shutdown Isolates Output from Input
■ Soft-Start Limits Inrush Current
■ Short Circuit and Over Temperature Protection
■ Minimum External Component Count
■ 6-Lead 3x3mm MLP Package
Applications
■ Cell Phones
■ Handheld Computers
■ Portable Electronic Equipment
■ Core Supply to Next Generation Processors
■ Low Voltage DC Bus
■ Digital Cameras
■ DSP Supplies
Typical Application
Description
The FAN5601 is an advanced third generation switched capaci-
tor step down DC/DC converter utilizing Fairchild’s proprietary
ScalarPump™ technology. This innovative architecture utilizes
scalar switch re-configuration and fractional switching tech-
niques to produce low output ripple, low ESR spikes and
improve efficiency over a wide load range.
The FAN5601 produces a fixed regulated output from 2.2V to
5V input voltage. Customized output voltages are available in
100mV increments from 1V to 1.8V. Contact marketing for cus-
tomized outputs.
In order to maximize efficiency, the FAN5601 achieves
regulation by skipping pulses. Depending upon load current, the
size of the switches is scaled dynamically, consequently, current
spikes and EMI are minimized. An internal soft start circuitry
prevents excessive current drawn from the supply. The device is
internally protected against short circuit and over temperature
conditions.
The FAN5601 is available in 6-lead 3x3mm MLP.
ScalarPump™ is a registered trademark of Fairchild Semiconductor Corporation.
CB = 1µF
INPUT 2.2V to 5.5V
CIN = 10µF
C+
VIN
C- OUTPUT 1.0V t o 1.8V
VOUT
ENABLE GND
COUT = 10µF
©2005 Fairchild Semiconductor Corporation
FAN5601 Rev. 1.0.5
1
www.fairchildsemi.com
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Pages | Pages 15 | ||
Télécharger | [ FAN5601 ] |
No | Description détaillée | Fabricant |
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