参数资料
| 型号： | LT1310EMSE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 7/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 1.5A 10MSOP |
| 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： | 2.8 V ~ 35 V |
| 输入电压： | 2.8 V ~ 18 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 10kHz ~ 4.5MHz |
| 电流 - 输出： | 1.5A |
| 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-MSOP |
LT1310
OPERATIO
C T Selection for Operating Frequency
To synchronize to an external input signal, the timing
capacitor and PLL filter components must be chosen
properly. This is a simple process and can be done using
the graph in Figure 2a.
In Figure 2a, operating frequency is plotted versus timing
capacitor (C T ) with the upper and lower lines correspond-
ing to the minimum and maximum lock frequency given a
specific C T value. To choose the right timing capacitor,
find the intersection of the desired operating frequency
and the dashed line. Then move to the corresponding C T
Because the lock range for the PLL is nearly 2:1, the
nearest standard value NP0 capacitor can be used. For
the application shown in Figure 1, a 1.6MHz switching
frequency corresponds to an 100pF timing capacitor.
Since the switching frequency affects inductor ripple
current, the inductor must also be scaled. Table 1 shows
recommended component values for various switching
frequencies.
Table 1. Recommended Component Values for Various Switching
Frequencies (R LP = 3.01k)
SWITCHING
FREQUENCY C T C C C LP R C L1
value.
Alternately, use the following equations as a starting point:
for f LOCK ≥ 2MHz:
600kHz
1MHz
1.6MHz
2MHz
330pF
180pF
100pF
68pF
1500pF
1000pF
820pF
820pF
2700pF
2200pF
1500pF
1500pF
10k
10k
15k
15k
10 μ H
6.2 μ H
5.6 μ H
4.7 μ H
C T = 0 . 75 ?
– 40 ? 10 – 12 ?
? 250 ? 10 – 6
? f LOCK
?
?
2.5MHz
3MHz
47pF
33pF
330pF
330pF
1500pF
1000pF
20k
20k
3.3 μ H
2.7 μ H
for f LOCK ≤ 2MHz:
C T = 0 . 75 ?
– 60 ? 10 – 12 ?
? 310 ? 10 – 6
? f LOCK
?
?
100k
10k
1k
MINIMUM
MAXIMUM
LOCK
FREQUECY
V IN
5V
SHUTDOWN
SYNC IN
C1
4.7 μ F
CERAMIC
L1
LT1310
V IN
SHDN
SYNC
PLL-LPF
SW
FB
C T
178k
20.5k
V OUT
12V
LOCK
FREQUECY
V C
GND
100
R LP
C LP
R C
C C
C T
C2
4.7 μ F
CERAMIC
10
10k
100k
1M
10M
FREQUENCY (Hz)
1310 F02a
1310 F02a
Figure 2a. C T vs Operating Frequency
Figure 2b. Circuit Used for C T Selection
sn1310 1310fs
7
相关PDF资料 |
PDF描述 |
|---|---|
| LT1313CS#PBF | IC DRV/REG PCMCIA VPP DL 16SOIC |
| LT1316CMS8#TRPBF | IC REG BST FLYBK ADJ 0.5A 8MSOP |
| LT1317BIS8#TRPBF | IC REG BOOST ADJ 0.5A 8SOIC |
| LT1339ISW#PBF | IC REG CTRLR BST PWM CM 20-SOIC |
| LT1370HVIR#TRPBF | IC REG MULTI CONFIG ADJ 6A D2PAK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1311 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Quad 12MHz, 145ns Settling Precision Current-to-Voltage Converter for Optical Disk Drives |
| LT1311CS | 制造商:LINER 制造商全称:Linear Technology 功能描述:Quad 12MHz, 145ns Settling Precision Current-to-Voltage Converter for Optical Disk Drives |
| LT1311CS#TR | 功能描述:IC CONV PREC QUAD 12MHZ 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| LT1312 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Single PCMCIA VPP Driver/Regulator |
| LT1312CS8 | 功能描述:IC DRVR/REG PCMCIA VPP SNGL8SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:2,000 系列:- 应用:控制器，DSP 输入电压:4.5 V ~ 25 V 输出数:2 输出电压:最低可调至 1.2V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:30-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:30-TSSOP 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。