参数资料
| 型号： | ADP1621ARMZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 25/32页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR PWM CM 10-MSOP |
| 标准包装： | 1 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.5MHz |
| 占空比： | 97% |
| 电源电压： | 2.9 V ~ 5.5 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 是 |
| 反相： | 是 |
| 倍增器： | 是 |
| 除法器： | 是 |
| Cuk： | 是 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 标准包装 |
| 产品目录页面： | 791 (CN2011-ZH PDF) |
| 配用： | ADP1621-EVALZ-ND - BOARD EVALUATION FOR ADP1621 |
| 其它名称： | ADP1621ARMZ-R7DKR |
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Data Sheet
Low Input and High Output Boost Converter
that operates at a switching frequency of 200 kHz with V IN = 5 V
and V OUT = 30 V with a 1 A load. The duty cycle for this circuit
is about 83%. A higher switching frequency can be selected, but
the switching power loss in the MOSFET increases and a bigger
MOSFET is needed. For switch-node voltages greater than 30 V,
a sense resistor, R CS , is needed because the absolute maximum
voltage at CS is 33 V.
High Input Voltage Boost Converter Circuit
Input voltages higher than 5.5 V are possible with the addition
of a resistor and an NPN transistor, as shown in Figure 37, or just
ADP1621
with a single resistor, as shown in Figure 38. When there is a
wide input voltage range, it is sometimes desirable to use the
pass NPN transistor, as shown in Figure 37. If the input voltage
range is narrow, a single resistor connecting to the IN and PIN
pins is sufficient, as shown in Figure 38. In Figure 37, Resistor R3
limits the current going into IN, and there is power loss in this
resistor. The voltages at IN and PIN are both clamped to about
5.5 V, which can rise to as high as 5.9 V when the shunt current
is 30 mA. Refer to Figure 9 for the I-V characteristics of the
shunt regulators. Ensure that Resistor R3 is physically large
enough to handle the power dissipation. For switch-node
voltages higher than 30 V, a current-sense resistor is needed and
the CS pin senses the voltage across the sense resistor.
V IN = 5V
L1
7.8μH
C3
1μF
C4
0.1μF
D1
V OUT = 30V
1A
10V
10V
IN
PIN
FB
R1
115k?
1%
C OUT1
1μF
100V
C OUT2
4.7μF
50V
C OUT3
330μF
50V
×2
ADP1621
SDSN
GATE
M1
R2
4.87k?
1%
C2
120pF
R COMP
1.6M?
C COMP
20pF
COMP
FREQ
R FREQ
100k?
1%
CS
PGND
GND
R S
909?
R CS
3m?
C1
47μF
6.3V
×2
AGND
f OSC = 200kHz
C1 = MURATA GRM31CR60J476M
C OUT1 = MURATA GRM31CR72A10
C OUT2 = MURATA GRM55ER71H475K
C OUT3 = RUBYCON 50ZL330M10x23
M1 = VISHAY SUD50N06-07L
D1 = IRF 15TQ060
L1 = COILCRAFT DO501DH-782ML
Figure 36. Low Input, High Output Boost Converter
V IN = 8V TO 15V
R3
700?
Q1
C3
L1
8.2μH
C4
0.1μF
10V
IN PIN
FB
ADP1621
SDSN
GATE
1μF
10V
M1
D1
R1
115k?
1%
R2
4.87k?
1%
C OUT1
1μF
100V
V OUT = 30V
1A
C OUT2 C OUT3
4.7μF 330μF
50V 50V
×2
C2
120pF
R COMP
2M?
C COMP
220pF
COMP
FREQ
R FREQ
34.8k?
CS
PGND
GND
R S
402?
R CS
3m?
C1
22μF
16V
×2
AGND
f OSC = 560kHz
C1 = MURATA GRM32ER61C226K
C OUT1 = MURATA GRM31CR72A105K
C OUT2 = MURATA GRM55ER71H475K
C OUT3 = RUBYCON 50ZL220M10x23
M1 = IRF7470
Q1 = SIGNAL NPN TRANSISTOR
D1 = MBRB7H50
L1 = COILCRAFT MSS1260-822ML
Figure 37. High Input Voltage and High Output Voltage Converter
Rev. B | Page 25 of 32
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP1621-BL2-EVZ | 制造商:Analog Devices 功能描述:BLANK ADISIMPOWER EVAL ADP1621 - Boxed Product (Development Kits) |
| ADP1621-BL4-EVZ | 功能描述:BOARD EVALUATION FOR ADP1621 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| ADP1621-EVAL | 制造商:AD 制造商全称:Analog Devices 功能描述:Constant-Frequency, Current-Mode Step-Up DC/DC Controller |
| ADP1621-EVALZ | 功能描述:BOARD EVALUATION FOR ADP1621 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| ADP162ACBZ-1.2-R7 | 功能描述:IC REG LDO 1.2V .15A 4WLCSP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 其它有关文件:LD39015JXX12 View All Specifications 标准包装:1 系列:- 稳压器拓扑结构:正，固定式 输出电压:1.2V 输入电压:1.5 V ~ 5.5 V 电压 - 压降（标准）:- 稳压器数量:1 电流 - 输出:150mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:4-WFBGA，FCBGA 供应商设备封装:4-覆晶（1.07x1.07） 包装:Digi-Reel® 其它名称:497-11958-6 |
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