- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385553 > MAX8621ZETG (MAXIM INTEGRATED PRODUCTS INC) Dual Step-Down DC-DC Power-Management ICs for Portable Devices PDF資料下載
參數(shù)資料
| 型號： | MAX8621ZETG |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Dual Step-Down DC-DC Power-Management ICs for Portable Devices |
| 中文描述： | 6-CHANNEL POWER SUPPLY SUPPORT CKT, QCC24 |
| 封裝： | 4 X 4 MM, 0.80 MM HEIGHT, THIN QFN-24 |
| 文件頁數(shù)： | 16/18頁 |
| 文件大小： | 360K |
| 代理商： | MAX8621ZETG |
The die junction temperature can be calculated as follows:
When operating at an ambient temp of +70°C under the
above conditions:
T
J
should not exceed +150°C in normal operating con-
ditions.
Printed Circuit Board Layout and Routing
High switching frequencies and relatively large peak
currents make the PC board layout a very important
aspect of design. Good design minimizes excessive
EMI on the feedback paths and voltage gradients in the
ground plane, both of which can result in instability or
regulation errors. Connect C
IN_
close to IN_ and GND.
Connect the inductor and output capacitors (C
OUT_
) as
close to the IC as possible and keep the traces short,
direct, and wide.
The traces between C
OUT_
, C
FF_
, and FB_ are sensitive
to inductor magnetic field interference. Route these
traces between ground planes or keep the traces away
from the inductors.
Connect GND and PGND_ to the ground plane. The
external feedback network should be very close to the
FB pin, within 0.2in (5mm). Keep noisy traces, such as
the LX node, as short as possible. Connect GND to the
exposed paddle directly under the IC. Refer to the
MAX8621Y/MAX8621Z evaluation kit for an example PC
board layout and routing.
T
W
C
W
C
J
=
° +
°
=
°
70
1 182
.
36
112 6
.
T
T
P
J
A
D
JA
=
+
×θ
M
Dual Step-Down DC-DC Power-Management ICs
for Portable Devices
16
______________________________________________________________________________________
Pin Configuration
MAX8621Y
MAX8621Z
1
5
4
3
2
F
R
6
7
10
9
8
11
12
13
14
15
16
17
18
21
20
19
24
23
22
F
G
O
E
OUT2
OUT1
IN2
EN3
PGND2
IN1
DR
LX2
PGND1
LX1
S
E
S
I
O
P
RESET
EN2
TOP VIEW
A "+" SIGN WILL REPLACE THE FIRST PIN INDICATOR ON LEAD-FREE PACKAGES.
Chip Information
TRANSISTOR COUNT: 5850
PROCESS: BiCMOS
相關PDF資料 |
PDF描述 |
|---|---|
| MAX863 | Dual, High-Efficiency, PFM, Step-Up DC-DC Controller(雙輸出,高效,PFM,步升DC-DC變換器) |
| MAX870C | TV 55C 55#20 PIN WALL RECP |
| MAX870D | Switched-Capacitor Voltage Inverters |
| MAX871 | Switched-Capacitor Voltage Inverters |
| MAX871C | Switched-Capacitor Voltage Inverters |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8621ZETG+ | 功能描述:PMIC 解決方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8621ZETG+T | 功能描述:PMIC 解決方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8621ZETG-T | 功能描述:PMIC 解決方案 Dual Step-Down PMIC for Portable Devices RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8621ZEVKIT | 制造商:Maxim Integrated Products 功能描述:DUAL STEP-DOWN POWER MANAGEMENT IC - Rail/Tube |
| MAX8622ET | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。