参数资料
型号: ISL97701IRZ
厂商: Intersil
文件页数: 9/10页
文件大小: 0K
描述: IC REG BOOST ADJ 0.1A 10DFN
标准包装: 100
类型: 升压(升压)
输出类型: 可调式
输出数: 1
输出电压: 可调
输入电压: 2.3 V ~ 5.5 V
频率 - 开关: 1MHz
电流 - 输出: 100mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 10-VFDFN 裸露焊盘
包装: 管件
供应商设备封装: 10-DFN(3x3)
ISL97701
C7
3.3μF/50V
J7
J2
L1
6.8μH
R1
390k Ω
C8
100nF
VOUT
C6
1nF/50V
J3
GND_IN
1
U1
GND
LX 10
R6
39k Ω
R3
OPEN
VDD
GND_OUT
J1
VDD
2
3
VDDOUT
VOUT
VDD
NEN
9
8
J1 2
J6
VDD_IN
C1
VDD 100nF
C2
10μF
C9
4.7μF/10V
4
5
NSYNC
FB
GND
NC
7
6
NEN
J4
JP3
ISL97701
NSYNC
FIGURE 18. ISL97701 APPLICATION BOARD
Typical Application
Typical applications are passive- or active-matrix organic
light emitting diode displays (PMOLED, AMOLED) in
TABLE 2. OPTIMAL COMBINATION OF BOOST INDUCTOR L
AND OUTPUT CAPACITOR C OUT
CAPACITOR (μF)
handheld devices. Applications with low power or screen
saver mode is directly supported.
Components Selection
The input capacitance is normally 10μf~15μF and the output
capacitor is 3.3μf to 6.6μF. X5R or X7R type of ceramic
capacitor with correct voltage rating is recommended. The
INDUCTOR (μH)
4.7
6.8
10
15
MIN
2.2
3.3
4.7
6.8
MAX
10
10
10
10
output capacitor value will affect the output voltage ripple.
The higher the value of the output capacitor, the lower the
ripple of the output voltage.
When choosing an inductor, make sure the inductor can
handle the average and peak currents given by Equations 5,
Recommended inductor and ceramic capacitor
manufacturers are listed in Table 3:
TABLE 3. RECOMMENDED INDUCTOR AND CERAMIC
CAPACITOR MANUFACTURERS
6 and 7 (80% efficiency assumed):
INDUCTOR
CERAMIC CAPACITOR
0.8 ? V IN
I OUT ? V OUT
I LAVG = ----------------------------------
(EQ. 5)
Sumida: www.sumida.com
TDK: www.tdk.co.jp
Taiyo Yuden: www.t-yuden.com
AVX: www.avxcorp.com
Toko:
www.tokoam.com
Murata:
www.murata.com
I LPK = I LAVG + --- ? Δ I L
V IN ? ( V OUT – V IN )
L ? V OUT ? f OSC
1
2
Δ I L = ---------------------------------------------------
(EQ. 6)
(EQ. 7)
PCB Layout Considerations
The layout is very important for the converter to function
properly. To ensure the high pulse current in the power
ground does not interfere with the sensitive feedback
Where:
? Δ I L is the peak-to-peak inductor current ripple in Amperes
? L is the inductance in H
? f OSC is the switching frequency, typically 1.0MHz
Optimal combinations of the boost inductor L and the output
capacitor C OUT are listed in Table 2:
9
signals, the current loops (V IN -L1-LX-GND, and V IN -L1-
V OUT -C OUT -GND) should be as short as possible. For the
DFN package, there is no separated GND. All return GNDs
should be connected in GND pin but with no sharing branch.
The heat of the IC is mainly dissipated through the thermal
pad. Maximizing the copper area connected to the thermal
pad is preferable. In addition, a solid ground plane is helpful
for the EMI performance.
FN6474.1
February 22, 2008
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ISL97701IRZ-T13 功能描述:IC REG BOOST ADJ 0.1A 10DFN 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:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 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:1 输出电压:5V,1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°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
ISL97701IRZ-T7 功能描述:IC REG BOOST ADJ 0.1A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:1 系列:EZBuck™ 类型:降压(降压) 输出类型:可调式 输出数:1 输出电压:0.8 V ~ 22.1 V 输入电压:3 V ~ 26 V PWM 型:电流模式 频率 - 开关:1.5MHz 电流 - 输出:1.8A 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:8-WFDFN 裸露焊盘 包装:剪切带 (CT) 供应商设备封装:8-DFN(2x2) 其它名称:785-1276-1
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