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参数资料
| 型号： | MAX1705EEE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 0.85A 16QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.5 V ~ 5.5 V |
| 输入电压： | 0.7 V ~ 5.5 V |
| 频率 - 开关： | 260kHz ~ 340kHz |
| 电流 - 输出： | 850mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QSOP |
1- to 3-Cell, High-Current, Low-Noise,
Step-Up DC-DC Converters with Linear Regulator
____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 2, T A = +25°C, unless otherwise noted.)
MAX1705
MAX1705
LINE-TRANSIENT RESPONSE
MAX1705
LOAD-TRANSIENT RESPONSE
POWER-ON DELAY
(PWM MODE)
3V
A
A
A
B
2.5V
3.3V
C
B
A
B
200 μ s/div
I OUT = 0mA, V OUT = 3.3V
A = V IN , 1.5V TO 2.0V, 200mV/div
B = V OUT, 10mV/div, 3.3V DC OFFSET
MAX1705
PWM SWITCHING WAVEFORMS
1A
0V
B
A
200 μ s/div
V IN = 1.2V, V OUT = 3.3V
A = V OUT , 50mV/div, 3.3V DC OFFSET
B = I OUT , 0mA TO 200mA, 200mA/div
MAX1705
PFM SWITCHING WAVEFORMS
0mA
D
2ms
V IN = 1.2V, LOAD = 1k ?, ONB TIED TO OUT
A = ONA, 2V/div
B = V LDO , 2V/div
C = V OUT , 2V/div
D = INDUCTOR CURRENT, 500mA/div
MAX1705
LINEAR-REGULATOR
OUTPUT NOISE
DC TO 500kHz
0mA
C
V OUT
B
C
0V
V OUT
V LDO
D
1 μ s/div
V IN = 1.2V, V OUT = 4.5V, V LDO = 3.3V, I LDO = 200mA
A = INDUCTOR CURRENT, 500mA/div
B = LX VOLTAGE, 5V/div
C = V OUT RIPPLE, 50m/div AC-COUPLED
D = V LDO RIPPLE, 5m/div AC-COUPLED
C5 = 0.33 μ F
V LDO
D
2 μ s/div
V IN = 1.2V, V OUT = 4.5V, V LDO = 3.3V, I LDO = 40mA
A = INDUCTOR CURRENT, 500mA/div
B = LX VOLTAGE, 5V/div
C = V OUT RIPPLE, 50mV/div AC-COUPLED
D = V LDO RIPPLE, 5mV/div AC-COUPLED
C5 = 0.33 μ F
V LDO
1ms/div
V LDO IS AC-COUPLED, 1mv/div
I LDO = 200mA
C5 = 0.33 μ F
8
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