FX5545G0182V6T2中文资料
Vishay
Low Profile 3mm DC/DC Buck Converter
0.8V to 4.5V*, 3A with 380W/in3 Power Density
Efficiency up to 95%
FEATURES
?Fully integrated DC/DC converter
?Advanced development of FX5545G305
?High efficiency over large load range
?100% duty cycle
?Power density - more than 380W/inch3
?1μA shutdown current
?2.5V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells)
?0.8V to 4.5V* output voltage
?Programmable PWM/PSM controls
?Low output ripple
?BGA construction
?Temperature range: - 40°C to + 85°C
?No external components required
?Output power 10W
?Maximum current 3A
?Low profile
*Note: For higher putput voltage please consult factory at
FunctionPAK@https://www.wendangku.net/doc/7911867015.html,
The DC/DC converter is a programmable topology synchronized Buck converter for today’s continuous changing portable electronic market. The DC/DC converter provides flexibility of utilizing various battery configurations and chemistries such as NiCd, NiMH, or Li+ with an input voltage range of 2.5V to 6V. An additional flexibility is provided with topology programmability to power multiple loads such as power amplifiers, microcontrollers, or baseband logic IC’s. For ultra-high efficiency, converters are designed to operate in synchronous rectified PWM mode under full load while transforming into externally controlled The DC/DC converter is available in 20-ports BGA package. In order to satisfy the stringent ambient temperature requirements, the DC/DC converter is designed to handle the industrial temperature range of - 40°C to + 85°C.
APPLICATION
?Cordless phones, PDAs and others
?Supply voltage source for low-voltage chip sets
?Point of Load (POL) applications such as drivers for FPGA’s, microprocessors, DSP’s amplifiers, etc.?Portable computers
?Battery back-up supplies
?Cameras
ORDERING INFORMATION
FX5545G008
FUNCTION
SIZE
CIRCUIT IDENTIFIER - G008 or G018
OUTPUT VOLTAGE - Example: 1.2V should be written as 1V2 as the V indicates the decimal point or ADJ for adjustable version - self selectable output voltage. G018ADJ is only available in the adjustable version for Vout = 0.9V - 1.3V. For design considerations please see ANF110
PACKAGING - B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13” reel; T2 = 7” reel.
For lead (Pb)-free solder please add E2 suffix.
Vishay
DIMENSIONS in inches [millimeters]
L
0.58 ± 0.01
[14.7 ± 0.25]
W
0.48 ± 0.01
[12.2 ± 0.25]
A
0.1 ± 0.01
[2.54 ± 0.25]
B
0.09 ± 0.01
[2.29 ± 0.25]
C
0.09 ± 0.01
[2.27 ± 0.25]
T
0.126 max
[3.2 max]
Ball Diameter
0.03 ± 0.001
[0.762 ± 0.025]
https://www.wendangku.net/doc/7911867015.html,/doc?10119
For adjustable version please refer to Self Selectable Output Voltage
application note which is available at https://www.wendangku.net/doc/7911867015.html,/doc?10116
**Note: if not used must be connected ti Vin.
***Note: N/C - If the output voltage is 0.9V and higher. For output
voltage of 0.8V connect Vref to MCL4448 (Vishay RF PIN Diode).
BOTTOM SIDE
PIN CONFIGURATION*
PIN CONNECTION
1, 2SD
3, 7SYNC**
4, 8Vref***
5, 9Vin
6, 10PWM/PSM
11, 12N/C
13, 17GND
14, 18Vout
15, 19N/C
16, 20GND
Pin Configuration for Vo = 0.8V Pin Configuration for Vo = 0.9V - 4.5V
RECOMMENDED PAD PATTERN in inches [millimeters]
A D F
0.1 ± 0.01
[2.54 ± 0.25]
0.03 ± 0.001
[0.8 ± 0.02]
0.02 ± 0.001
[0.5 ± 0.02]
TAPE AND REEL
See Tape and Reel Information - T ype B
Vishay
*Note: W D = Power Dissipated
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER UNIT
CONDITION
MIN
TYP
MAX Input
Voltage Range V DC
2.5
6
Quiescent Current μA
PSM mode 200Soft Start Time ms T SS for Vout = 3.3V 4T SS for Vout = 1.2V 2.6SD, PWM/PSM,SYNC Logic High V V H 2.4
Logic Low V
V L 0.8Normal Mode μA I DD 750PSM Mode
μA I DD 250Shutdown Mode μA
I DD
1
Shutdown Time ms T SS for Vout = 3.3V 4T SS for Vout = 1.2V 0.6
Insulation T est Voltage V AC 60Hz 60sec 750Resistance
ΩV ISO = 500 V DC 1 x 1011
Leakage Current nA V ISO = 500 V DC
5
Output Power W 10Voltage
V DC 0.8 to 4.5
Voltage T olerance
%For Vout = 0.9V and above (using external diode BAR065V for
Vout = 0.9V up to 1.3V) at 25°C Ambient T emp.
- 3+3%
For Vout = 0.8V up to 1.3V using external diode MCL4448 at
25°C Ambient T emp.
- 5
+5T emp. Coefficient %/°C 0.15
Ripple and Noise mVpp DC to 20 MHz
80
General
Package Weight gr. 1.4
Oscillator Frequency KHz 400
SYNC Range F SYNC /F OSC
1.2 1.5Temperature Operation °C - 40+ 85Storage °C - 55
+ 125Operating Junction T emp.°C T j 150Thermal Impedance °C/W D *θJA
82
Rise Time Rise Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 3A Fall Time
Fall Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 3A
Vishay
PWM MODE
Vout Vs. lout*
Vin = 4.0V
Vout Vs. Vin*
Δ Temp Vs. lout*
Above 25°C Ambient Temperature Vin = 6.0V; Vout = 3.3V
Efficiency Vs. Lout*
Vout = 3.3A
Vout Vs. lout*
Vin = 4.0V
Vout Vs. Vin*
Vin = 6V
Δ Temp Vs. lout*
Above 25°C Ambient Temperature Vin = 6.0V; Vout = 1.2V
Efficiency Vs. lout*
Vin = 4.0V; Vout = 1.2V
* Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter Fluke 45
Vishay
Vout Vs. lout* Vin = 4.0V Vout Vs. Vin*
Vin = 6V
Efficiency Vs. lout*
Vin = 4.0V; Vout = 3.3V
Vout Vs. lout*
Vin = 4.0V
Vout Vs. Vin*
Efficiency Vs. lout*
Vin = 4.0V; Vout = 1.2V
PSM MODE
* Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter Fluke 45