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1   iv
OUT2 LOAD TRANSIENT RESPONSE
100mA/div
MAX8896 toc25
I
OUT2
OUT2
100mV/div
(AC-COUPLED)
150mA
0mA
0
0.06
0.04
0.02
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0
50
100    150    200
OUT2 DROPOUT VOLTAGE
vs. LOAD CURRENT
LOAD CURRENT (mA)
V
IN
 = 2.7V
R
L
 = 0.3&
Dual PWM Step-Down Converter in a 2mm x
2mm Package for WCDMA PA and RF Power
8  _______________________________________________________________________________________
200ns/div
OUT2 HEAVY-LOAD SWITCHING
WAVEFORMS
V
LX2
10mV/div
(AC-COUPLED)
5V/div
200mA/div
MAX8896 toc22
V
OUT2
I
L2
200mA LOAD
10祍/div
OUT2 STARTUP WAVEFORM
V
OUT2
2V/div
200mA/div
MAX8896 toc23
I
L2
V
RFEN_
5V/div
Typical Operating Characteristics (continued)
(V
CC
= V
IN1
= V
IN2
= 3.6V, V
REFIN
= 0.72V, circuit of Figure 3, T
A
= +25癈, unless otherwise noted.)
2   iv
OUT2 LINE TRANSIENT RESPONSE
V
IN
500mV/div
200mA/div
MAX8896 toc24
OUT2
I
L2
50mV/div
(AC-COUPLED)
4.0V
3.5V
20mA LOAD
2 n  iv
OUT2 LIGHT-LOAD SWITCHING
WAVEFORMS
LX2
10mV/div
(AC-COUPLED)
5V/div
200mA/div
MAX8896 toc21
OUT2
I
L2
20mA LOAD
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相关代理商/技术参数
MAX8896EREE-T 制造商:Maxim Integrated Products 功能描述:
MAX8896EVKIT+ 功能描述:直流/直流开关转换器 Dual PWM Step-Down Converter in a 2mm x 2mm Package for WCDMA PA and RF Power RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT
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