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参数资料
| 型号： | ADP1612-5-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 22/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL ADP1612 5V VOUT |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步升 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 5V |
| 电流 - 输出： | 1.4A |
| 输入电压： | 1.8 ~ 5.5 V |
| 稳压器拓扑结构： | 升压 |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ADP1612 |
| 产品目录页面： | 791 (CN2011-ZH PDF) |
| 相关产品： | ADP1612ARMZ-R7DKR-ND - IC REG BST SEPIC ADJ 1.4A 8MSOP ADP1612ARMZ-R7CT-ND - IC REG BST SEPIC ADJ 1.4A 8MSOP ADP1612ARMZ-R7TR-ND - IC REG BST SEPIC ADJ 1.4A 8MSOP |
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ADP1612/ADP1613
Data Sheet
C IN
V IN = 3.3V TO 5.5V
OFF
10μF
ON
L1
10μH
6 VIN SW 5
ADP1613
3 EN
FB 2
D1
3A, 40V V OUT = 20V
R1
150k?
C OUT
SEPIC CONVERTER
The circuit in Figure 74 shows the ADP1612/ADP1613 in a
single-ended primary inductance converter (SEPIC) topology.
This topology is useful for an unregulated input voltage, such as
a battery-powered application in which the input voltage can vary
between 2.7 V to 5 V and the regulated output voltage falls within
C SS
33nF
7 FREQ
8 SS
GND
4
COMP 1
R2
10k?
R COMP
8.2k?
C COMP
1200pF
10μF
the input voltage range.
The input and the output are dc isolated by a coupling capacitor
(C1). In steady state, the average voltage of C1 is the input voltage.
When the ADP1612/ADP1613 switch turns on and the diode
L1: DO3316P-103ML
D1: MBRA340T3G
R1: RC0805JR-07150KL
C COMP : ECL-2VB1H122K
C IN : GRM21BR61C106KE15L
turns off, the input voltage provides energy to L1 and C1 provides
energy to L2. When the ADP1612/ADP1613 switch turns off
R2: CRCW080510K0FKEA C OUT : GRM32DR71E106KA12L
R COMP : RC0805JR-078K2L C SS : ECJ-2VB1H333K
Figure 71. ADP1613 Step-Up Regulator Configuration
V OUT = 20 V, f SW = 1.3 MHz
and the diode turns on, the energy in L1 and L2 is released to
charge the output capacitor (C OUT ) and the coupling capacitor
(C1) and to supply current to the load.
100
90
V OUT = 20V
f SW = 1.3MHz
T A = 25°C
ADP1613
L1
DO3316P
4.7μH
ADP1612/
C1
MBRA210LT
80
V IN = 2.0V TO 5.5V
ADP1613
10μF
2A, 10V
V OUT = 3.3V
6
VIN
SW 5
70
60
C IN
10μF
OFF
ON
3
7
EN
FREQ
FB 2
L2
DO3316P
4.7μH
R1
16.9k?
50
40
30
V IN = 3.3V
V IN = 4.2V
V IN = 5.0V
C SS
8
SS
GND
4
COMP 1
R COMP
82k?
C COMP
220pF
R2
10k?
C OUT
10μF
20
V IN = 5.5V
Figure 74. SEPIC Converter
1
10 100
LOAD CURRENT (mA)
Figure 72. ADP1613 Efficiency vs. Load Current
V OUT = 20 V, f SW = 1.3 MHz
1k
TFT LCD BIAS SUPPLY
applications. This circuit has +10 V, ?5 V, and +22 V outputs.
The +10 V is generated in the step-up configuration. The ?5 V
T
OUTPUT VOLTAGE (200mV/DIV)
AC-COUPLED
LOAD CURRENT (50mA/DIV)
V OUT = 20V
f SW = 1.3MHz
and +22 V are generated by the charge-pump circuit. During
the step-up operation, the SW node switches between +10 V
and ground (neglecting the forward drop of the diode and on
resistance of the switch). When the SW node is high, C5 charges
up to +10 V. When the SW node is low, C5 holds its charge and
forward-biases D8 to charge C6 to ?10 V. The Zener diode (D9)
clamps and regulates the output to ?5 V.
The VGH output is generated in a similar manner by the charge-
pump capacitors, C1, C2, and C4. The output voltage is tripled
and regulated down to 22 V by the Zener diode, D5.
TIME (100μs/DIV)
Figure 73. ADP1613 50 mA to 150 mA Load Transient (V IN = 5 V)
V OUT = 20 V, f SW = 1.3 MHz
Rev. D | Page 22 of 28
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP1612ARMZ-R7 | 功能描述:IC REG BST SEPIC ADJ 1.4A 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 产品培训模块:High Efficiency Current Mode Switching Regulators CMOS LDO Regulators 特色产品:BD91x Series Step-Down Regulators 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:2 输出电压:3.3V，0.8 V ~ 2.5 V 输入电压:4.5 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:1MHz 电流 - 输出:1.5A 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-VFQFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:VQFN020V4040 产品目录页面:1373 (CN2011-ZH PDF) 其它名称:BD9152MUV-E2TR |
| ADP1612-BL1-EVZ | 制造商:Analog Devices 功能描述:BLANK ADISIMPOWER EVAL ADP1612 - Boxed Product (Development Kits) |
| ADP1612-BL2-EVZ | 制造商:Analog Devices 功能描述:BLANK SEPIC DEMO BOARD - Boxed Product (Development Kits) |
| ADP1612-BL3-EVZ | 功能描述:EVAL BLANK ADISIMPOWER ADP1612 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 |
| ADP1613 | 制造商:AD 制造商全称:Analog Devices 功能描述:650 kHz /1.3 MHz Step-Up PWM DC-to-DC Switching Converters |
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