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参数资料
| 型号： | ILC6382 |
| 厂商： | Impala Linear Corporation |
| 英文描述： | 1-CELL TO 3-CELL BOOST WITH TRUE LOAD DISCONNECT, 3.3V, 5V OR ADJUSTABLE OUTPUT |
| 中文描述： | 1节至3与真正的负载断开，3.3V或可调输出5V的电池升压 |
| 文件页数： | 9/19页 |
| 文件大小： | 1455K |
| 代理商： | ILC6382 |
1-Cell to 3-Cell Boost with True Load Disconnect, 3.3V, 5V, or Adjustable Output
Impala Linear Corporation
9
(408) 574-3939
www.impalalinear.com
Oct 1999
ILC6382 1.5
Inductors
The ILC6382 is designed to work with a 15μH inductor in
most applications. There are several vendors who supply
standard surface mount inductors to this value. Suggested
suppliers are shown in table 1. Higher values of inductance
will improve efficiency, but will reduce peak inductor current
and consequently ripple and noise, but will also limit output
current.
Capacitors
Input Capacitor
The input capacitor is necessary to minimize the peak cur-
rent drawn from the battery. Typically a 10μF tantalum
capacitor is recommended. Low equivalent series resist-
ance ( ESR ) capacitors will help to minimize battery voltage
ripple.
Output Capacitor
Low ESR capacitors should be used at the output of the
ILC6382 to minimize output ripple. The high switching
speeds and fast changes in the output capacitor current,
mean that the equivalent series impedance of the capacitor
can contribute greatly to the output ripple. In order to mini-
mize these effects choose an output capacitor with less
than 10nH of equivalent series inductance (ESL) and less
than 100m
of equivalent series resistance (ESR).
Typically these characteristics are met with ceramic capac-
itors, but may also be met with certain types of tantalum
capacitors. Suitable vendors are shown in table 2.
Layout and Grounding Considerations
High frequency switching and large peak currents means
PCB design for DC-DC converters requires careful consid-
eration. A general rule is to place the DC-DC converter cir-
cuitry well away from any sensitive RF or analog compo-
nents. The layout of the DC-DC converters and its exter-
nal components are also based on some simple rules to
minimise EMI and output voltage ripple.
Layout
1
. Place all power components, ILC6382, inductor,
input capacitor and output capacitor as close together
as possible.
2.
Keep the output capacitor as close to the ILC6382 as
possible with very short traces to the VOUT and GND
pins. Typically it should be within 0.25 inches or 6mm.
3.
Keep the traces for the power components wide, typi-
cally >50mil or 1.25mm.
4
. Place the external networks for LBI and VFB close to
the ILC6382, but away from the power components as far
as possible.
Grounding
1
. Use a star grounding system with separate traces for
the power ground and the low power signals such as
LBI/SD and VFB. The star should radiate from where the
power supply enters the PCB.
2
. On multilayer boards use component side copper for
grounding around the ILC6382 and connect back to a
quiet ground plane using vias.
Vendor
Coilcraft
Part No
DO3308P-153
D03316P-153
D01608C-153
LQH4N150K
LQH3C150K
CDR74B-150MC
CD43-150
CD54-150
NLC453232T-150K
Contact
(847) 639 6400
muRata
(814) 237 1431
Sumida
(847) 956 0666
TDK
(847) 390 4373
Description
Vendor
Kemet
Sprague
AVX
TDK
AVX
Contact
T495 series tantalum
595D series tantalum
TAJ, TPS series tantalum
X7R Ceramic
(864) 963 6300
(603) 224 1961
(803) 946 0690
(847) 390 4373
(803) 946 0690
10
μ
F
V
IN
15
μ
H
C
OUT
10μF
R1
R2
ILC6382
L
X
V
IN
LBI/SD
SYNC
GND
LBO
V
FB
V
OUT
V
OUT
1
2
3
4
8
7
6
5
C
IN
+
R3
L
R4
ON/OFF
Local "Quiet" Ground
Power Ground
L1
Recommended application circuit schematic for ILC6382CIR-ADJ
External Component Selection
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ILC6382CIR-33 | 制造商:IMPALA 制造商全称:IMPALA 功能描述:1-CELL TO 3-CELL BOOST WITH TRUE LOAD DISCONNECT, 3.3V, 5V OR ADJUSTABLE OUTPUT |
| ILC6382CIR-50 | 制造商:IMPALA 制造商全称:IMPALA 功能描述:1-CELL TO 3-CELL BOOST WITH TRUE LOAD DISCONNECT, 3.3V, 5V OR ADJUSTABLE OUTPUT |
| ILC6382CIR-ADJ | 制造商:IMPALA 制造商全称:IMPALA 功能描述:1-CELL TO 3-CELL BOOST WITH TRUE LOAD DISCONNECT, 3.3V, 5V OR ADJUSTABLE OUTPUT |
| ILC6383 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:1-Cell to 3-Cell Boost DC-DC Converter with True Load Disconnect, 3.3V, 5V or Adjustable Output |
| ILC6383CIR-33 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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