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参数资料
| 型号： | MAX1524EUT-T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/14页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST FLYBK SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1MHz |
| 占空比： | 90% |
| 电源电压： | 1.5 V ~ 5.5 V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | SOT-6 |
| 包装： | 带卷 (TR) |
Simple SOT23 Boost Controllers
Table 1. Design Examples Using CCM
PARAMETER
V IN
V OUT
I OUT(MAX)
R1, R2
Duty Cycle (max)
t ON
f SWITCHING
I PEAK
L IDEAL
L ACTUAL
P LR
C OUT(MIN) to C OUT(MAX)
C OUT
ESR COUT(MIN)
C OUT(ACTUAL)
V RIPPLE(ESR)
C FF
C FB
C IN
MOSFET
Qg
I GATE
I DIODE(RMS)
Diode
EXAMPLE 1
3.3V ± 10%
5V
700mA
274k ? , 90.9k ?
45.5%
0.5μs (SET = GND)
691kHz to 909kHz
when I OUT > 120mA
1.48A
3.73μH
Sumida CR43-3R3
3.3μH, 86m ? , 1.44A
29mW at I OUT = 350mA
14μF to 448μF
33μF
23m ? for stability,
51m ? for soft-start
Sanyo POSCAP 10TPA33M
33μF, 10V,
60m ? , 100m ? max
27mV P-P at light loads,
81mV P-P at full load
100pF
100pF
10μF, 6.3V ceramic
Fairchild FDC633N
8nC at Vgs = 3V
12nC at Vgs = 5V
7.3mA nonbootstrapped,
10.9mA bootstrapped
0.96A
Nihon EP10QY03, 1A
EXAMPLE 2
2.7V to 4.2V
12V
200mA
866k ? , 100k ?
78.4%
3μs (SET = V CC )
221kHz to 261kHz
when I OUT > 35mA
1.06A
33.8μH
Sumida CDR74B-330
33μH, 180m ? , 0.97A
22mW at I OUT = 100mA
10μF to 53μF
33μF
74m ? for stability,
70m ? for soft-start
AVX TPSD336M020R0200
33μF, 20V,
150m ? , 200m ? max
48mV P-P at light loads,
144mV P-P at full load
100pF
330pF
10μF, 6.3V ceramic
Fairchild FDC633N
9nC at Vgs = 3.6V
2.4mA nonbootstrapped
0.49A
Nihon EP10QY03, 1A
EXAMPLE 3
1.8V to 3.0V
5V
1.0A
274k ? , 90.9k ?
67.3%
3μs (SET = V CC )
152kHz to 224kHz
when I OUT > 167mA
3.51A
6.83μH
Sumida CDRH125-5R8
5.8μH, 17m ? , 4.4A
22mW at I OUT = 500mA
120μF to 640μF
150μF
21m ? for stability,
21m ? for soft-start
Sanyo POSCAP 6TPB150M
150μF, 6.3V,
40m ? , 55m ? max
42mV P-P at light loads,
126mV P-P at full load
100pF
220pF
10μF, 6.3V ceramic
Vishay Si3446DV
10nC at Vgs = 5V
2.2mA bootstrapped
1.84A
Nihon EC21QS03L, 2A
12
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