- 您现在的位置：买卖IC网 > PDF目录96795 > PT6727N (TEXAS INSTRUMENTS INC) 13 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 PDF资料下载
参数资料
| 型号： | PT6727N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 13 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 |
| 封装： | ROHS COMPLIANT, VERTICAL MOUNT PACKAGE-17 |
| 文件页数： | 5/10页 |
| 文件大小： | 207K |
| 代理商： | PT6727N |
Application Notes
For technical support and more information, see inside back cover or visit www.ti.com
PT6721/22 & PT6725 Series
Capacitor Recommendations for the 12V-Input
PT6721/22 and PT6725 Series of ISRs
Input Capacitors
The recommended input capacitor(s) is determined by
1.6Arms minimum ripple current rating and 1,000F mini-
mum capacitance. Ripple current and Equivalent Series
Resistance (ESR) values are the major considerations along
with temperature when selecting the proper capacitor.
The tantalum capacitors listed below cannot be used on
the input bus since they are not rated for 12V operation.
Output Capacitors
The minimum required output capacitance is 330F with a
maximum ESR less than or equal to 50m
. Failure to
observe this requirement may lead to regulator instability
or oscillation. Electrolytic capacitors have poor ripple
performance at frequencies greater than 400kHz, but
excellent low frequency transient response. Above the
ripple frequency ceramic decoupling capacitors are nec-
essary to improve the transient response and reduce any
microprocessor high frequency noise components apparent
during higher current excursions. Preferred low ESR type
capacitor part numbers are identified in the Table 1 below.
/
r
o
d
n
e
V
r
o
t
i
c
a
p
a
C
s
e
i
r
e
S
s
c
i
t
s
i
r
e
t
c
a
r
a
h
C
r
o
t
i
c
a
p
a
Cy
t
i
t
n
a
u
Q
g
n
i
k
r
o
W
e
g
a
t
l
o
V
)
F
(
e
u
l
a
Vt
n
e
l
a
v
i
u
q
E
)
R
S
E
(
e
c
n
a
t
s
i
s
e
R
s
e
i
r
e
S
m
u
m
i
x
a
M
C
°
5
0
1
e
l
p
i
R
)
s
m
r
I
(
t
n
e
r
u
C
l
a
c
i
s
y
h
P
)
m
(
e
z
i
S
t
u
p
n
I
s
u
B
t
u
p
t
u
O
s
u
B
r
e
b
m
u
N
t
r
a
P
r
o
d
n
e
V
c
i
n
o
s
a
n
a
P
)
l
a
i
d
a
R
(
C
F
)
t
n
u
o
M
e
c
a
f
r
u
S
(
K
F
/
C
F
V
5
3
V
5
2
V
5
2
V
0
5
V
5
2
V
5
3
0
8
6
0
1
0
1
0
1
0
1
0
7
4
3
4
0
.
0
8
3
0
.
0
8
3
0
.
0
3
7
0
8
3
0
.
0
3
4
0
.
0
A
m
5
6
1
A
m
5
6
1
A
m
0
9
6
1
A
m
0
1
6
1
A
m
0
2
A
m
0
9
6
1
5
.
2
1
× 0
2
5
.
2
1
× 0
2
6
1
× 5
1
6
1
× 5
.
6
1
8
1
× 5
.
6
1
6
1
× 5
.
6
1
2
1
2
1
2
1
8
6
V
1
C
F
U
E
2
0
1
E
1
C
F
U
E
S
2
0
1
E
1
C
F
U
E
M
2
0
1
H
1
K
F
V
E
N
2
0
1
E
1
C
F
V
E
N
1
7
4
V
1
C
F
V
E
n
o
c
-
i
m
e
h
C
d
e
t
i
n
U
s
e
i
r
e
S
V
X
L
V
5
3
V
5
3
V
6
1
0
8
6
0
1
0
7
4
3
0
.
0
8
3
0
.
0
4
8
0
.
0
÷
2
4
0
.
0
=
2
A
m
0
9
6
1
A
m
0
3
6
1
(
A
m
5
2
8
× )
2
5
.
2
1
× 5
2
6
1
× 0
2
0
1
× 6
1
2
1
2
1
L
5
2
X
2
1
M
0
8
6
B
V
5
3
V
X
L
0
2
X
6
1
M
2
0
1
B
V
5
3
V
X
L
6
1
X
0
1
M
1
7
4
B
V
6
1
V
X
L
n
o
c
i
h
c
i
N
s
e
i
r
e
S
L
P
s
e
i
r
e
S
M
P
V
5
3
V
5
2
V
5
3
0
8
6
0
2
1
0
1
6
3
0
.
0
9
3
0
.
0
4
3
0
.
0
A
m
0
6
1
A
m
0
6
1
A
m
0
7
1
5
.
2
1
× 5
2
8
1
× 5
1
6
1
× 0
2
1
H
M
1
8
6
V
1
L
P
U
6
H
M
2
1
E
1
L
P
U
6
H
M
2
0
1
V
1
M
P
U
:
n
o
c
-
s
O
S
)
t
n
u
o
M
e
c
a
f
r
u
s
(
V
S
V
0
1
V
0
1
0
3
0
3
5
2
0
.
0
0
2
0
.
0
A
m
0
5
3
A
m
0
8
3
0
1
× 5
.
0
1
3
.
0
1
× 3
.
0
1
)
1
(
R
/
N
)
1
(
R
/
N
1
V
(
M
0
3
S
0
1
o
)
V
5
<
V
(
0
3
V
S
0
1
o
)
V
5
<
m
u
l
a
t
n
a
T
X
V
A
)
t
n
u
o
M
e
c
a
f
r
u
S
(
S
P
T
V
0
1
V
0
1
0
3
0
3
1
.
0
÷
5
0
.
0
=
2
6
0
.
0
÷
3
0
.
0
=
2
A
m
0
5
2
>
A
m
0
3
>
L
3
.
7
× W
7
.
5
× H
1
.
4
)
1
(
R
/
N
)
1
(
R
/
N
2
0
1
0
R
0
1
0
M
7
3
E
S
P
T
0
6
0
R
0
1
0
M
7
3
V
S
P
T
m
u
l
a
t
n
a
T
t
e
m
e
K
s
e
i
r
e
S
5
9
4
T
/
0
1
5
T
(t
n
u
o
M
e
c
a
f
r
u
S)
V
0
1
V
0
1
0
3
0
2
3
0
.
0
7
0
.
0
÷
5
3
0
.
0
=
2
A
m
0
4
1
A
m
0
2
>
W
3
.
4
× L
3
.
7
× H
0
.
4
)
1
(
R
/
N
)
1
(
R
/
N
1
2
S
A
0
1
0
M
7
3
X
0
1
5
S
A
0
1
0
M
7
2
X
5
9
4
T
m
u
l
a
t
n
a
T
e
u
g
a
r
p
S
s
e
i
r
e
S
D
4
9
5
(t
n
u
o
M
e
c
a
f
r
u
S)
V
0
10
3
35
4
0
.
0
A
m
0
6
3
2L
2
.
7
× W
6
× H
1
.
4
)
1
(
R
/
N1
T
2
R
0
1
0
X
7
3
D
4
9
5
Note: (N/R -Not recommended) The 10V-rated tantalum capacitors cannot be used on the input bus.
Table 1 Capacitors Characteristic Data
Tantalum Characteristics
Tantalum capacitors are recommended on the output bus
but only AVX TPS Series, Sprague 593D/594/595 Series,
or Kemet T495/T510 Series. These capacitors are recom-
mended over other types due to their higher surge current,
excellent power dissipation and ripple current ratings. As a
caution, the TAJ Series by AVX is not recommended. This
series exhibits considerably higher ESR, reduced power
dissipation and lower ripple current capability. The TAJ
Series is also less reliable compared to the TPS series when
determining power dissipation capability.
Capacitor Table
Table 1 identifies the characteristics of capacitors from a
number of vendors with acceptable ESR and ripple cur-
rent (rms) ratings. The suggested minimum quantities
per regulator for both the input and output buses are
identified.
This is not an extensive capacitor list. Capacitors from
other vendors are available with comparable specifications.
Those listed are for guidance. The RMS ripple current rating
and ESR (Equivalent Series Resistance at 100kHz) are the
critical parameters are necessary to insure both optimum
regulator performance and long capacitor life.
相关PDF资料 |
PDF描述 |
|---|---|
| PT6724C | 14 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 |
| PT6729N | 13 A SWITCHING REGULATOR, 400 kHz SWITCHING FREQ-MAX, SMA17 |
| PT6903A | 6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, SMA23 |
| PT6901N | 6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, SMA23 |
| PT6903C | 6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, SMA23 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PT6728 | 制造商:TI 制造商全称:Texas Instruments 功能描述:14-A 12V-Input Adjustable Integrated Switching Regulator |
| PT6728A | 功能描述:REGULATOR 1.5V 14A CU CASE HRZ RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:PT6720 标准包装:10 系列:PT4570 类型:隔离 输出数:1 电压 - 输入（最小）:36V 电压 - 输入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:3.3A 电源（瓦） - 制造商系列:30W 电压 - 隔离:1.5kV（1500V） 特点:- 安装类型:表面贴装 封装/外壳:19-SIP SMD 模块 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包装:托盘 工作温度:-40°C ~ 85°C 效率:84% 电源（瓦特）- 最大:30W |
| PT6728C | 功能描述:REGULTR 1.5V 14A CU CASE HRZ SMD RoHS:否 类别:电源 - 板载 >> DC DC Converters 系列:PT6720 标准包装:10 系列:PT4570 类型:隔离 输出数:1 电压 - 输入（最小）:36V 电压 - 输入（最大）:75V Voltage - Output 1:9V Voltage - Output 2:- Voltage - Output 3:- 电流 - 输出（最大）:3.3A 电源（瓦） - 制造商系列:30W 电压 - 隔离:1.5kV（1500V） 特点:- 安装类型:表面贴装 封装/外壳:19-SIP SMD 模块 尺寸/尺寸:3.00" L x 1.19" W x 0.50" H（76.2mm x 30.2mm x 12.7mm） 包装:托盘 工作温度:-40°C ~ 85°C 效率:84% 电源（瓦特）- 最大:30W |
| PT6728N | 功能描述:开关变换器、稳压器与控制器 1.5Vout 14A 12V-Inp CU Case Adj ISR RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| PT6729 | 制造商:TI 制造商全称:Texas Instruments 功能描述:14-A 12V-Input Adjustable Integrated Switching Regulator |
发布紧急采购，3分钟左右您将得到回复。