FX5545G105 [VISHAY]
Industry Smallest and Low Profile 6.5W 2.0A DC/DC Buck Converter with High Output Power Density; 业界最小和薄型6.5W 2.0A DC / DC降压转换器具有高输出功率密度
| 型号： | FX5545G105 |
| 厂家： | 
VISHAY |
| 描述： | Industry Smallest and Low Profile 6.5W 2.0A DC/DC Buck Converter with High Output Power Density |
| 文件： | 总4页 (文件大小：191K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FX5545G105
Vishay
Industry Smallest and Low Profile
6.5W 2.0A DC/DC Buck Converter
with High Output Power Density
FEATURES
• Fully integrated DC/DC converter
• High efficiency over large load range
• 100% duty cycle
• Power density - more than 240W/inch3
• 1µA shutdown current
• 2.7V to 6V input range (1Li+ and 3-cell NiCd or NiMH cells)
• 1.35V to 4.5V* output voltage
• Programmable PWM/PSM controls
• Low output ripple
• BGA/LGA construction
• Temperature range: - 40°C to + 85°C
• No external components needed
• Output power 6.5W
• Maximum current 2.0A
• Low profile
* Note: For higher output voltage please consult factory at
FunctionPAK@Vishay.com
The DC/DC converter is
a programmable topology
APPLICATION
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 2.7V 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
pulse-skipping mode (PSM) under light load.
• Point of Load (POL) applications such as drivers for
FPGA’s, microprocessors, DSP’s amplifiers, etc.
• Cordless phones, PDAs and others
• Supply voltage source for low-voltage chip sets
• Portable computers
• Battery back-up supplies
• Cameras
• Routers
• Fiber optics
• LANS
• Image processing
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.
ORDERING INFORMATION
FX
5545
G105
FUNCTION
SIZE
CIRCUIT IDENTIFIER
OUTPUT VOLTAGE - Example: 2.7V should be written as 2V7 as the V indicates the decimal point,
or ADJ for adjustable version - self selectable output voltage.
PACKAGING - B1 = 10pcs in bulk; B5 = 50pcs in bulk; T1 = 13” reel; T2 = 7” reel.
For lead (Pb)-free solder please add E2 suffix.
Document Number: 10114
Revision: 21-Jan-05
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
27
FX5545G105
Vishay
DIMENSIONS in inches [millimeters]
0.58 0.01
[14.7 0.25]
W
L
0.48 0.01
[12.2 0.25]
W
0.1 0.01
[2.54 0.25]
A
C
0.09 0.01
[2.29 0.25]
B
A
0.09 0.01
[2.27 0.25]
C
0.12 max
[3 max]
T
0.03 0.001
[0.762 0.025]
Ball Diameter
BOTTOM SIDE
PIN CONFIGURATION*
PIN
CONNECTION
SD
1, 2
20 19 18 17
16 15 14 13
3, 7
SYNC**
N/C
Marked on Upper Side
4, 8
12 11 10
9
5
1
8
4
7
3
6
2
5, 9
Vin
6, 10
11, 12
13, 17
14, 18
15, 19
16, 20
PWM/PSM
N/C
GND
*Note: Pin Description application note is available at
www.vishay.com/doc?10119
Vout
**Note: if not used must be connected to Vin.
N/C
GND
RECOMMENDED PAD PATTERN in inches [millimeters]
A
D
F
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]
A
TAPE AND REEL
See Tape and Reel Information - Type B
www.vishay.com
28
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
Document Number: 10114
Revision: 21-Jan-05
FX5545G105
Vishay
STANDARD ELECTRICAL SPECIFICATIONS
PARAMETER
UNIT
CONDITION
MIN
TYP
MAX
Input
Voltage Range
Quiescent Current
Soft Start Time
SD, PWM/PSM,SYNC
Logic High
VDC
µA
ms
2.7
6
PSM mode
TSS
200
3.3
V
VH
VL
2.4
Logic Low
V
0.8
750
250
1
Normal Mode
PSM Mode
µA
µA
µA
ms
IDD
IDD
IDD
TSS
Shutdown Mode
Shutdown Time
Insulation
4
Test Voltage
Resistance
VAC
Ω
60Hz 60sec
750
1 x 1011
V
ISO = 500 VDC
Leakage Current
Output
nA
VISO = 500 VDC
5
Power
W
6.5
Voltage
VDC
1.35 to 4.5
Voltage Tolerance
Temp. Coefficient
Ripple and Noise
%
at 25 °C Ambient Temperature
- 3
+ 3
%/°C
mVpp
mVpp
0.03
DC to 20 MHz
130
90
With 10µF capacitor
General
Package Weight
Oscillator
Frequency
SYNC Range
Temperature
Operation
gr.
1.4
1.5
KHz
400
FSYNC/FOSC
1.2
°C
°C
- 40
- 55
+ 85
Storage
+ 125
Operating Junction
Temp.
Thermal Impedance
°C
Tj
150
82
°C/WD*
θJA
*Note: WD = Power Dissipated
Rise Time
Fall Time
Rise Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 2A
Fall Time (PWM mode): Vin = 6V; Vout = 3.3V; lout = 2A
Document Number: 10114
Revision: 21-Jan-05
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
www.vishay.com
29
FX5545G105
Vishay
PWM MODE
Vout Vs. lout*
Vin = 3.6V; Vout = 2.5V
Vout Vs. Vin*
2.6
2.55
2.5
2.6
2.55
2.5
Iout = 0.5A
Iout = 2A
Iout = 1A
2.45
2.4
2.45
2.4
2.35
2.3
2.35
2.3
0
0.5
1
1.5
2
2.5
0
2
4
6
8
lout (A)
Vin (V)
∆ Temp. Vs. lout*
Above 25°C Ambient Temperature: For Vin = 6V
Efficiency Vs. lout*
Vin = 3.6V; Vin = 2.5V
100
95
90
40
35
30
25
20
15
10
5
85
80
75
70
65
60
55
50
0
0
0.5
1
1.5
2
2.5
0
0.5
1
1.5
2
2.5
lout (A)
lout (A)
PSM MODE
Vout Vs. Vin*
Vout Vs. lout*
lout = 0.1A
Vin = 6V
3.4
3.4
3.38
3.36
3.34
3.32
3.3
3.38
3.36
3.34
3.32
3.3
3.28
3.26
3.24
3.22
3.2
3.28
3.26
3.24
3.22
3.2
3
4
5
6
7
0.25
0
0.05
0.1
0.15
0.2
Iout (A)
Vin (V)
Efficiency Vs. lout*
100
Vin = 4V
Vin = 6V
90
80
70
60
50
40
30
20
10
0
0
0.05
0.1
0.15
0.2
0.25
Iout (A)
*Note: Measurements were taken with Power supply: ZUP 20-40 from Nemic Lambda; Electronic load: 6063B from Agilent; Multimeter: Fluke 45
from Fluke and 34401 digital multimeter from Agilent; Scope: Infiniium 54815A from Agilent.
www.vishay.com
30
For technical questions, contact FunctionPAK@vishay.com
For marketing questions, contact FunctionPAK.marketing@vishay.com
Document Number: 10114
Revision: 21-Jan-05
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