参数资料
| 型号： | MAX1821EUB+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK WCDMA 10-UMAX |
| 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： | 1.25 V ~ 5.5 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
ELECTRICAL CHARACTERISTICS (continued)
(V BATT = 3.6V, SHDN = BATT, SKIP = SYNC = GND, V REF = 1.25V (MAX1820 only), T A = -40°C to +85°C , unless otherwise noted.)
(Notes 2, 3)
PARAMETER
LX Leakage Current
Maximum Duty Cycle
Minimum Duty Cycle
SYMBOL
I LX
duty MAX
duty MIN
CONDITIONS
V BATT = 5.5V, LX = GND or BATT
SKIP = GND
SKIP = BATT, V BATT = 4.2V
MIN
-1
100
MAX
1
0
10
UNITS
μA
%
%
SYNC AND OSCILLATOR
SYNC Divide Ratio
(MAX1820X)
SYNC Capture Range
(MAX1820X)
SYNC Divide Ratio
(MAX1820Y)
SYNC Capture Range
(MAX1820Y)
SYNC = sine wave, SYNC input = 200mV P-P
SYNC = sine wave, SYNC input = 800mV P-P
SYNC = sine wave, AC-coupled,
SYNC input = 500mV P-P
SYNC = sine wave, SYNC input = 200mV P-P
SYNC = sine wave, SYNC input = 800mV P-P
SYNC = sine wave, AC-coupled,
SYNC input = 500mV P-P
V SYNC = IV (MAX1820Z, MAX1821)
13
13
10
18
18
15
-1
13
13
16
18
18
21
+1
Hz/Hz
MHz
Hz/Hz
MHz
SYNC Leakage Current
Internal Oscillator Frequency
(MAX1820Z, MAX1821)
I SYNC
f OSC
V SYNC = IV (MAX1820X, MAX1820Y, and
MAX1821X)
SYNC = GND
-5
0.8
+5
1.2
μA
MHz
LOGIC INPUTS ( SKIP , SHDN)
Logic Input High
Logic Input Low
Logic Input Current
V IH
V IL
1.6
0.4
1
V
V
μA
Note 2: Limits are 100% production tested at T A = +25°C for UCSP parts. Limits over the entire operating temperature range are
guaranteed by design and characterization but are not production tested.
Note 3: Specifications to -40°C are guaranteed by design and not subject to production test.
Typical Operating Characteristics
(T A = +25°C, unless otherwise noted.)
EFFICIENCY vs. OUTPUT VOLTAGE
(NORMAL MODE, V IN = 3.6V)
EFFICIENCY vs. OUTPUT VOLTAGE
(PWM MODE, V IN = 3.6V)
EFFICIENCY vs. INPUT VOLTAGE
NORMAL MODE, R LOAD = 10 ?
100
R LOAD = 5 ?
100
R LOAD = 5 ?
100
90
90
80
70
R LOAD = 10 ?
R LOAD = 15 ?
90
80
70
R LOAD = 10 ?
R LOAD = 15 ?
80
70
60
50
V OUT = 1.8V
V OUT = 0.4V
V OUT = 3.4V
40
60
50
40
60
50
40
30
20
10
0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
V IN (V)
_______________________________________________________________________________________
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1821EUB+ | 功能描述:直流/直流开关调节器 WCDMA 600mA Buck Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1821EUB+T | 功能描述:直流/直流开关调节器 WCDMA 600mA Buck Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1821EUB-T | 功能描述:直流/直流开关调节器 WCDMA 600mA Buck Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1821EUB-TG069 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1821XEBC | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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