FP6165ADXR-G1 [FEELING]
1.5MHz, 3A Synchronous Step-Down Regulator;
| 型号： | FP6165ADXR-G1 |
| 厂家： | 
Feeling Technology |
| 描述： | 1.5MHz, 3A Synchronous Step-Down Regulator |
| 文件： | 总20页 (文件大小：677K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FP6165
1.5MHz, 3A Synchronous Step-Down Regulator
General Description
The FP6165 is a high efficiency current mode synchronous buck PWM DC-DC regulator. The
internal generated 0.6V precision feedback reference voltage is designed for low output voltage. Low
RDS (ON) synchronous switch dramatically reduces conduction loss. To extend battery life for portable
application, 100% duty cycle is supported for low-dropout operation. Shutdown mode also helps saving
the current consumption. The FP6165 is packaged in MSOP-10L, DFN-10L and SOP-8L to reduce
PCB space.
Features
Input Voltage Range: 2.5 to 5.5V
Adjustable Output Voltage From 0.6V to VIN
Precision Feedback Reference Voltage: 0.6V (±2%)
Output Current: 3A (Max.)
Duty Cycle: 0~100%
Internal Fixed PWM Frequency: 1.5MHz
Low Quiescent Current: 100μA
No Schottky Diode Required
Built-in Soft Start
Current Mode Operation
Over Temperature Protection
Package: MSOP-10L (EP), DFN-10L, SOP-8L (EP)
Applications
Cellular Telephone
Wireless and DSL Modems
Digital Still Cameras
Portable Products
MP3 Players
Typical Application Circuit
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
1/20
FP6165
Function Block Diagram
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
2/20
FP6165
Pin Descriptions
Name No. I / O
Description
MSOP-10L (EP)
EN
VCC
1
2
I
Enable / UVLO
Supply Voltage
P
P
O
I
AVCC
PGOOD
FB / VOUT
AGND
SW
3
Analog Supply Voltage
Power Good Open Drain Output
Feedback
4
5
6
P
O
O
P
P
P
Analog Ground
Switch
7
SW
8
Switch
GND
GND
EP
9
Ground
10
11
Ground
Exposed PAD - Must Connect to Ground
DFN-10L
Name No. I / O
Description
Enable / UVLO
EN
VCC
1
2
I
P
P
O
I
Supply Voltage
AVCC
PGOOD
FB / VOUT
AGND
SW
3
Analog Supply Voltage
Power Good Open Drain Output
Feedback
4
5
6
P
O
O
P
P
P
Analog Ground
7
Switch
SW
8
Switch
GND
GND
EP
9
Ground
10
11
Ground
Exposed PAD - Must Connect to Ground
SOP-8L (EP)
Name No. I / O
Description
Enable / UVLO
EN
VCC
1
2
3
4
5
6
7
8
9
I
P
P
I
Supply Voltage
AVCC
FB / VOUT
AGND
SW
Analog Supply Voltage
Feedback
P
O
P
P
P
Analog Ground
Switch
GND
GND
EP
Ground
Ground
Exposed PAD - Must connect to Ground
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
3/20
FP6165
Marking Information
MSOP-10L (EP)
Reference Voltage Code
Ext: AD →0.6V
6165AD
Halogen Free
Lot Number
Internal ID
Per-Half Month
Year
DFN-10L
SOP-8L (EP)
Reference Voltage Code
Ext: AD →0.6V
6165-AD
9Fa-86L
Halogen Free
Lot Number
Internal ID
Per-Half Month
Year
Halogen Free: Halogen free product indicator
Lot Number: Wafer lot number’s last two digits
For Example: 132386TB 86
Internal ID: Internal Identification Code
Per-Half Month: Production period indicated in half month time unit
For Example: January → A(Front Half Month), B (Last Half Month)
February → C(Front Half Month), D(Last Half Month)
Year: Production year’s last digit
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
4/20
FP6165
Ordering Information
Part Number
FP6165ADgR-G1
FP6165ADdR-G1
FP6165ADXR-G1
Operating Temperature
Package
MSOP-10L (EP)
DFN-10L
MOQ
Description
Tape & Reel
Tape & Reel
Tape & Reel
-40°C ~ +85°C
-40°C ~ +85°C
-40°C ~ +85°C
3000EA
2500EA
2500EA
SOP-8L (EP)
Absolute Maximum Ratings
Parameter
Symbol Conditions
Min.
Typ.
Max.
6
Unit
V
Input Supply Voltage
VIN
-0.3
-0.3
EN, VFB, SW Voltage
VIN
V
P-Channel Switch Source Current (DC)
N-Channel Switch Source Current (DC)
Peak SW Switch Sink and Source Current (AC)
3.9
A
3.9
A
6
A
MSOP-10L
+70
+65
+50
+10
+10
+10
+150
+150
+260
°C / W
°C / W
°C / W
°C / W
°C / W
°C / W
°C
Thermal Resistance (Junction to Ambient)
Thermal Resistance (Junction to Case)
θJA
DFN-10L
SOP-8L
MSOP-10L
DFN-10L
SOP-8L
θJC
Junction Temperature
Storage Temperature
-65
°C
Lead Temperature (soldering, 10 sec)
°C
Suggested IR Re-flow Soldering Curve
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
5/20
FP6165
Recommended Operating Conditions
Parameter
Symbol
Conditions
Min.
2.5
Typ.
Max. Unit
Supply Voltage
Operating Temperature
VIN
5.5
V
-40
+85
°C
DC Electrical Characteristics (VIN=3.6V ,TA= 25°C , unless otherwise noted)
Parameter
Symbol Conditions
Min.
0.588
0.582
Typ.
Max. Unit
0.6
0.612
0.618
0.4
0.4
90
V
V
TA=25°C
Regulated Feedback Voltage
VFB
0.6
-40°C~+85°C
Line Regulation with VREF
Output Voltage LineRegulation
RDS (ON) of P-Channel FET
RDS (ON) of N-Channel FET
SW Leakage
VIN=2.5V to 5.5V
VIN=2.5 to 5.5V
0.04
0.04
60
VFB
/ V
% / V
mΩ
mΩ
µA
A
VOUT
RDS (ON) P ISW=100mA
RDS(ON) N ISW =-100mA
60
90
ILSW
IPK
VEN=0V, VIN=5V
±0.01
5
±1
Peak Inductor Current
Input Voltage Range
VFB=0.5V
3.75
2.5
6
VIN
-40°C~+85°C
5.5
1
V
Shutdown, VEN=0V
Active, VFB=0.5V, VEN=VIN
PFM, VFB=0.7V, VEN=VIN
-40°C~ +85°C
0.1
100
80
µA
µA
µA
V
Quiescent Current
ICC
EN Threshold
VEN
IEN
0.3
1.2
1
1.5
±1
EN Leakage Current
Oscillator Frequency
±0.01
1.5
-40°C ~+85°C
µA
FOSC
1.8
MHz
VFB=0.6V, -40°C ~+85°C
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
6/20
FP6165
Typical Operating Characteristics (TA= 25°C, VIN=3.3V, unless otherwise noted)
Quiescent Current VS. Input Voltage
Shutdown Current VS. Input Voltage
100
90
80
70
60
50
40
30
20
10
0
0.5
0.45
0.4
VEN=0
VFB=0.65V
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
4
4.5
5
5.5
Input Voltage (V)
Input Voltage (V)
Line Regulation
Load Regulation
0.61
1.8
1.79
1.78
1.77
1.76
1.75
1.74
1.73
1.72
1.71
1.7
VIN=3.3V
Vout=1.8V
VIN=3.3V
Vout=1.8V
0.608
0.606
0.604
0.602
0.6
0.598
0.596
0.594
0.592
0.59
2.5
3
3.5
4
4.5
5
5.5
0.5
1
1.5
2
2.5
3
Output Current (A)
Input Voltage (V)
Reference Volatge VS. Temperature
Frequency VS. Input Voltage
0.61
0.608
0.606
0.604
0.602
0.6
1.65
1.63
1.61
1.59
1.57
1.55
1.53
1.51
1.49
1.47
1.45
VIN=3.3V
Vout=1.8V
VIN=3.3V
Vout=1.8V
0.598
0.596
0.594
0.592
0.59
-40
-20
0
20
40
60
80
100
2.5
3
3.5
4
4.5
5
5.5
Temperature (℃)
Input Voltage (V)
Body Temperature VS. Output Current
Frequency VS. Temperature
1.65
1.63
1.61
1.59
1.57
1.55
1.53
1.51
1.49
1.47
1.45
100
90
80
70
60
50
40
30
20
10
0
VIN=3.3V
Vout=1.8V
VIN=3.3V
Vout=1.8V
-40
-20
0
20
40
60
80
100
0.5
1
1.5
2
2.5
3
Temperature (℃)
Output Current (A)
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
7/20
FP6165
Function Description
Control Loop
The FP6165 is a high efficiency current mode synchronous buck regulator. Both the main
(P-channel MOSFET) and synchronous (N-channel MOSFET) switches are built internally. With
current mode operation, the PWM duty is controlled both by the error amplifier output and the peak
inductor current. At the beginning of each cycle, the oscillator turn on the P-MOSFET switch to
source current from VIN to SW output. Then, the chip starts to compare the inductor current with the
error amplifier output. Once the inductor current is larger than the error amplifier output, the
P-MOSFET switch is turned off. When the load current increases, the feedback voltage FB will
slightly drop. This causes the error amplifier to output a higher current level until the prior mentioned
peak inductor current reach the same level. The output voltage then can be sustained at the same.
When the top P-MOSFET switch is off, the bottom synchronous N-MOSFET switch is turned on.
Once the inductor current reverses, both top and bottom MOSFET will be turn off to leave the SW pin
into high impedance state.
The FP6165’s current mode control loop also includes slope compensation to suppress
sub-harmonic oscillations at high duty cycles. This slope compensation is achieved by adding a
compensation ramp to the inductor current signal.
LDO Mode
The FP6165’s maximum duty cycle can reach 100%. That means the driver’s main switch is
turn on through out whole clock cycle. Once the duty reaches 100%, the feedback path no longer
controls the output voltage. The output voltage will be the input voltage minus the main switch
voltage drop.
Over Current Protection
FP6165 limits the peak main switch current cycle by cycle. When over current occurs, chip will
turn off the main switch and turn the synchronous switch on until next cycle.
Short Circuit Protection
When the FB pin is drop below 300mV, the chip will tri-state the output pin SW automatically. After
300us rest to avoid over heating, chip will re-initiate PWM operation with soft start.
Power Good
The power good pin is an open-drain output. Connects a 100kΩ pull up resistor between VIN and
this pin to obtain a PGOOD voltage. When the output voltage is not within ±10% of setting output
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
8/20
FP6165
voltage, the PGOOD pin will be pulled down to ground immediately. After the output voltage is
within ±10% of setting output voltage for 42.7µs (typ.), the PGOOD pin pull-down is turned off. Then it
can be pulled up to VIN through external pull-high resister.
Connect this pin to AGND if not used.
Thermal Protection
FP6165 will shutdown automatically when the internal junction temperature reaches 150℃ to
protect both the part and the system.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
9/20
FP6165
Application Information
Input capacitor Selection
The input capacitor must be connected to the VIN pin and GND pin of FP6165 to maintain
steady input voltage and filter out the pulsing input current. The voltage rating of input capacitor must
be greater than maximum input voltage plus ripple voltage.
In switch mode, the input current is discontinuous in a buck converter. The source current
waveform of the high-side MOSFET is a square wave. To prevent large voltage transients, a low ESR
input capacitor sized for the maximum RMS current must be used. The RMS value of input capacitor
current can be calculated by:
VO
VO
IRMS IO _ MAX
1
V
V
IN
IN
It can be seen that when VO is half of VIN, CIN is under the worst current stress. The worst current
stress on CIN is IO_MAX/2.
Inductor Selection
The value of the inductor is selected based on the desired ripple current. Large inductance gives
low inductor ripple current and small inductance result in high ripple current. However, the larger value
inductor has a larger physical size, higher series resistance, and/or lower saturation current. In
experience, the value is to allow the peak-to-peak ripple current in the inductor to be 10%~20%
maximum load current. The inductance value can be calculated by:
(V VO ) VO
(V VO )
2 (10% ~ 20%)IO
VO
IN
IN
L
f IL
V
f
V
IN
IN
The inductor ripple current can be calculated by:
VO
VO
VIN
IL
1
f L
Choose an inductor that does not saturate under the worst-case load conditions, which is the
load current plus half the peak-to-peak inductor ripple current, even at the highest operating
temperature. The peak inductor current is:
IL
2
IL _
IO
PEAK
The inductors in different shape and style are available from manufacturers. Shielded inductors
are small and radiate less EMI issue. But they cost more than unshielded inductors. The choice
depends on EMI requirement, price and size.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
10/20
FP6165
Dimensions (mm)
8.3×8.3×4.5
Component Supplier
FENG-JUI
Model
Inductor Value (µH)
1.0
1.0
2.2
2.2
TPRH8D43-2R2M
TPRH10D40-2R2M
TPRH8D43-3R3M
TPRH10D40-3R3M
10.3×10.3×4.0
8.3×8.3×4.5
FENG-JUI
FENG-JUI
10.3×10.3×4.0
FENG-JUI
Output Capacitor Selection
The output capacitor is required to maintain the DC output voltage. Low ESR capacitors are
preferred to keep the output voltage ripple low. In a buck converter circuit, output ripple voltage is
determined by inductor value, switching frequency, output capacitor value and ESR. The output ripple
is determined by:
1
VO IL ESRCOUT
8 f COUT
Where f = operating frequency, COUT= output capacitance and ΔIL = ripple current in the inductor.
For a fixed output voltage, the output ripple is highest at maximum input voltage since ΔIL increases
with input voltage.
Capacitor Value
Case Size
0805
Component Supplier
Model
10μF
10μF
22μF
Taiyo Yuden
TDK
JMK212BJ106MG
C12012X5ROJ106K
C2012JB0J226M
0805
0805 1206
TDK
Using Ceramic Input and Output Capacitors
Care must be taken when ceramic capacitors are used at the input and the output. When a
ceramic capacitor is used at the input and the power is supplied by a wall adapter through long wires, a
load step at the output can induce ringing at the input, VIN. At best, this ringing can couple to the output
and be mistaken as loop instability. At worst, a sudden inrush current through the long wires can
potentially cause a voltage spike at VIN, which may large enough to damage the part. When choosing
the input and output ceramic capacitors, choose the X5R or X7R specification. Their dielectrics have
the best temperature and voltage characteristics of all the ceramics for a given value and size.
Output Voltage Programming
In the adjustable version, the output voltage is set using a resistive voltage divider from the output
voltage to FB. The output voltage is:
R
1
VO 0.6V 1
R2
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
11/20
FP6165
The recommended resistor value is summarized below:
VOUT (V)
0.6
R1 (Ω)
200k
200k
300k
200k
270k
306k
R2 (Ω)
Not Used
200k
C3 (F)
Not Used
1.2
10p
1.5
200k
10p
1.8
100k
10p
2.5
85k
10p
3.3
68k
10p
PC Board Layout Checklist
1. The power traces, consisting of the GND, SW and VIN trace should be kept short, direct and
wide.
2. Place CIN near VIN pin as closely as possible to maintain input voltage steady and filter out the
pulsing input current.
3. The resistive divider R1 and R2 must be connected to FB pin directly and as closely as
possible.
4. FB is a sensitive node. Please keep it away from switching node, SW. A good approach is to
route the feedback trace on another PCB layer and have a ground plane between the top and
feedback trace routing layer. This reduces EMI radiation on to the DC-DC converter its own
voltage feedback trace.
5. Keep the GND plates of CIN and COUT as close as possible. Then connect this to the ground
plane (if one is used) with several vias. This reduces ground plane noise by preventing the
switching currents from circulating through the ground plane. It also reduces ground bounce at
FP6161 by giving it a low impedance ground connection.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
12/20
FP6165
Suggested Layout for DFN-10L / MSOP-10L
Suggested Layout for SOP-8L
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
13/20
FP6165
Typical Application
10
9
1
2
GND
GND
EN
VCC
L1 1.0μH
FP6165
VOUT
3
4
8
7
VIN
SW
AVCC
1.8V / 2A
C1
22μF
2.5V / 5.5V
SW
PGOOD
C3
10pF
R3
100K
R1
200K
C2
22μF
5
6
AGND
FB / VOUT
GND
R2
100K
DFN-10L / MSOP-10L
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
14/20
FP6165
VIN = 3.3V, VOUT = 1.8V, L = 1μH, TA = +25ºC
Load Transient Response
Enable ON
ILOAD: 300mA~3A
ILOAD: 3A
Output Ripple Voltage
Power Good
ILOAD: 3A
Power ON
Power Good
ILOAD: 3A
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
15/20
FP6165
Short Circuit
Efficiency
Efficiency VS. Output Current
100.00
90.00
80.00
70.00
60.00
50.00
40.00
30.00
20.00
10.00
0.00
2.7V
3.6V
4.2V
0
1
10
100
1000
10000
Output Current (mA)
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
16/20
FP6165
Package Outline
MSOP-10L (EP)
UNIT: mm
Symbols
Min. (mm)
Max. (mm)
A
A1
A2
b
1.100
0.150
0.950
0.270
0.230
0.000
0.750
0.170
0.080
c
D
3.000 BSC.
4.900 BSC.
3.000 BSC.
0.500 BSC.
E
E1
e
L
0.400
0°
0.800
8°
L1
θ°
0.950 REF.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
17/20
FP6165
MSOP-10L (EP) continued
Exposed PAD Dimensions:
Symbols
Min. (mm)
Max. (mm)
E2
D1
1.715 REF
1.600 REF
Note:
1. Package dimensions are in compliance with JEDEC outline: MO-187 BA-T.
2. Dimension “D” does not include molding flash, protrusions or gate burrs.
3. Dimension “E1” does not include inter-lead flash or protrusions.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
18/20
FP6165
DFN-10L (EP)
UNIT: mm
Symbols
Min. (mm)
0.700
Max. (mm)
0.800
A
A1
A3
b
0.000
0.050
0.20REF
0.180
0.300
D
3.00
3.00
E
D2
E2
e
2.200
1.400
2.700
1.750
0.500
L
0.300
0.200
0.500
K
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
19/20
FP6165
SOP-8L (EP)
UNIT: mm
Symbols
Min. (mm)
1.346
Max. (mm)
1.752
0.152
1.498
4.978
3.987
6.197
1.270
8°
A
A1
A2
D
0.050
4.800
3.810
5.791
0.406
0°
E
H
L
θ°
Exposed PAD Dimensions:
Symbols
Min. (mm)
Max. (mm)
E1
D1
2.184 REF
2.971 REF
Note:
1. Package dimensions are in compliance with JEDEC outline: MS-012 AA.
2. Dimension “D” does not include molding flash, protrusions or gate burrs.
3. Dimension “E” does not include inter-lead flash or protrusions
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice.
No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Website: http://www.feeling-tech.com.tw
Rev. 0.71
20/20
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