参数资料
型号: MAX1820XEUB+
厂商: Maxim Integrated Products
文件页数: 8/18页
文件大小: 0K
描述: IC REG BUCK WCDMA 10-MSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
应用: 转换器,WCDMA 功率放大器应用
输入电压: 2.6 V ~ 5.5 V
输出数: 1
输出电压: 0.4 V ~ 3.4 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-µMAX
包装: 管件
WCDMA Cellular Phone 600mA
Buck Regulators
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
1.6
1.2
0.8
0.4
0
OUTPUT SWITCHING HARMONICS
vs. FREQUENCY
(V IN = 3.8V, V OUT = 3.4V, I LOAD = 600mA)
1.6
1.2
0.8
0.4
0
OUTPUT SWITCHING HARMONICS
vs. FREQUENCY
(V IN = 3.8V, V OUT = 1.8V, I LOAD = 300mA)
0.1
1
10
0.1
1
10
1.6
1.2
0.8
0.4
0
FREQUENCY (MHz)
OUTPUT SWITCHING HARMONICS
vs. FREQUENCY
(V IN = 4.2V, V OUT = 0.4V, I LOAD = 30mA)
4.0
3.0
2.0
1.0
0
FREQUENCY (MHz)
OUTPUT NOISE (V IN = 3.6V,
V OUT = 1.8V, I OUT = 300mA)
0.1
1
10
0.1
1
10
100
250
FREQUENCY (MHz)
FREQUENCY (MHz)
Pin Description
PIN
MAX1820
UCSP
MAX1820
μMAX
MAX1821
UCSP
MAX1821
μMAX
NAME
FUNCTION
PWM/Skip-Mode Input. Drive with logic 0 to use PWM at medium
A1
1
A1
1
SKIP
and heavy loads and pulse skipping at light loads. Drive with
logic 1 to force PWM at all loads.
A2
2
A2
2
COMP
Compensation. Typically, connect an 82k ? (for MAX1821) or
43k ? (for MAX1820) series resistor and 330pF capacitor from
this pin to GND to stabilize the regulator.
A3
3
OUT
Output Voltage Sense Input. Connect OUT directly to the output.
8
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