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FAN5602MP45X 데이터시트 PDF




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부품번호 FAN5602MP45X 기능
기능 Universal (Step-Up/Step-Down) Charge Pump Regulated DC/DC Converter
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FAN5602MP45X 데이터시트, 핀배열, 회로
www.fairchildsemi.com
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
• Adaptive Seven 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 con-
verter 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 topologies. Depending upon
actual load conditions, the device automatically switches
between constant frequency and pulse skipping (PFM)
modes of operation in order 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 effi-
ciency is achieved under any input/output voltage conditions
because an internal logic circuitry automatically reconfigures
the system to the best possible topology. Only two 1µF
bucket capacitors and one 10µF output capacitor are needed.
During power on soft start circuitry prevents excessive cur-
rent 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 output
voltage. Any other output voltage option within the 1.5V to
5V range is available upon request. The FAN5602 is avail-
able in 8-lead MSOP and 3x3mm 8-lead MLP packages
Typical Application
Input 2.7V to 5.5V
VIN
1
CIN
C2+
2
CB
3
C2-
GND 4
8
6
FAN5602
7
5
ENABLE
C1+
VOUT
COUT
C1-
REV. 1.1 10/7/04




FAN5602MP45X pdf, 반도체, 판매, 대치품
FAN5602
PRODUCT SPECIFICATION
DC Electrical Characteristics
VIN = 2.7V to 5.5V, C1 = C2 = 1µF, CIN = COUT = 10µF, ENABLE = VIN, TA = -40 °C to +85 °C unless otherwise
noted. Typical values are at TA = 25°C.
Parameter
Input Undervoltage Lockout
Output Voltage, VOUT
Quiescent Current
Conditions
VIN 0.75 x VNOM,
0mA < ILOAD < 100mA
VIN 1.1 x VNOM,
ILOAD = 0mA
Min.
Typ.
Max. Units
1.5 1.7 2.2
V
0.97 x VNOM VNOM 1.03 x VNOM V
100 300
µA
Off Mode Supply Current
ENABLE = GND
0.1 1 µA
Output Short-circuit Current
VOUT < 150mV
200 mA
Efficiency
VIN = 0.85 x VNOM,
ILOAD = 30mA
3.3V
4.5V, 5.0V
75
80
%
VIN = 1.1 x VNOM,
ILOAD = 30mA
3.3V
4.5V, 5.0V
90
92
%
Oscillator Frequency
Thermal Shutdown Threshold
TA = 25°C
0.7 1.0 1.3 MHz
145 °C
Thermal Shutdown Threshold
Hysteresis
15 °C
ENABLE Logic Input High
Voltage, VIH
1.5 V
ENABLE Logic Input Low
Voltage, VIL
0.5 V
ENABLE Input Bias Current
ENABLE = VIN or GND
-1
1 µA
VOUT Turn On Time
VIN = 0.9 x VNOM,
ILOAD =0mA,
10% to 90%
0.5 mS
VOUT Ripple
VIN = 2.5V
ILOAD = 200mA
10 mVpp
4 REV. 1.1 10/7/04

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FAN5602MP45X 전자부품, 판매, 대치품
PRODUCT SPECIFICATION
Typical Performance Characteristics (cont)
TA = 25°C, VOUT = 3.3V unless otherwise noted.
Load Transient Response (LDO Mode)
VIN = 3.7V
COUT = 5µF
TA = 25°C
FAN5602
Load Transient Response (2:3 Mode)
VIN = 3.0V
COUT = 5µF
TA = 25°C
Time (10µs/div)
Load Transient Response (1:2 Mode)
VIN = 2.5V, TA = 25°C
COUT = 5µF
Time (10µs/div)
Enable Delay
Time (10µs/div)
Time (400µs/div)
REV. 1.1 10/7/04
7

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부품번호상세설명 및 기능제조사
FAN5602MP45X

Universal (Step-Up/Step-Down) Charge Pump Regulated DC/DC Converter

Fairchild Semiconductor
Fairchild Semiconductor

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