参数资料
型号: MAX8621YETG+T
厂商: Maxim Integrated Products
文件页数: 6/18页
文件大小: 0K
描述: IC PMIC W/DC-DC SUP 24-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 手持/移动设备
电源电压: 2.6 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-TQFN-EP(4x4)
包装: 带卷 (TR)
Dual Step-Down DC-DC Power-Management ICs
for Portable Devices
Typical Operating Characteristics
(Circuit of Figure 3, V IN1 = V IN2 = V IN3 = 3.6V, PWRON = IN, V BUCK1 = 1.375V, V BUCK2 = 1.8V, V OUT1 = 2.6V, V OUT2 = 2.6V, V OUT3
= 1.8V, V OUT4 = 3.0V, SEL1 = SEL2 = open, LX1 = LX2 = Murata LQH32CN2R2M53, T A = +25°C, unless otherwise noted.)
SUPPLY CURRENT
300
vs. INPUT VOLTAGE
STARTUP WAVEFORMS
MAX8621 toc02
280
NO LOAD
BUCK1, BUCK2, OUT1, OUT2: ON
PWRON
5V/div
0
260
240
220
200
180
160
140
120
100
BUCK1
BUCK2
OUT1
OUT2
2V/div
0
2V/div
0
5V/div
0
5V/div
0
2.5
3.0
3.5 4.0 4.5
INPUT VOLTAGE (V)
5.0
5.5
50 μ s/div
PWRON
SHUTDOWN WAVEFORMS
MAX8621 toc03
5V/div
RESET WAVEFORMS
MAX8621 toc04
BUCK1
0
2V/div
0
PWRON
2V/div
0
BUCK2
2V/div
0
OUT1
LOAD = 1mA
2V/div
0
OUT1
5V/div
0
OUT2
10mA LOAD ON ALL FOUR OUTPUTS
5V/div
0
RESET
2V/div
0
100 μ s/div
20ms/div
6
_______________________________________________________________________________________
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