- 您现在的位置：买卖IC网 > PDF目录1830 > LTC3568IDD#TRPBF (Linear Technology)IC REG BUCK SYNC ADJ 1.8A 10DFN PDF资料下载
参数资料
| 型号： | LTC3568IDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 15/18页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.8A 10DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 5 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 最高 4MHz |
| 电流 - 输出： | 1.8A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 10-DFN（3x3） |
LTC3568
APPLICATIONS INFORMATION
1. Does the capacitor C IN connect to the power V IN
(Pin 6) and power GND (Pin 5) as close as possible?
This capacitor provides the AC current to the internal
power MOSFETs and their drivers.
2. Are the C OUT and L1 closely connected? The (–) plate
of C OUT returns current to PGND and the (–) plate
of C IN .
3. The resistor divider, R1 and R2, must be connected
between the (+) plate of C OUT and a ground line ter-
minated near SGND (Pin 3). The feedback signal V FB
should be routed away from noisy components and
traces, such as the SW line (Pin 4), and its trace should
be minimized.
TYPICAL APPLICATIONS
4. Keep sensitive components away from the SW pin. The
input capacitor C IN , the compensation capacitor C C and
C ITH and all the resistors R1, R2, R T , and R C should be
routed away from the SW trace and the inductor L1.
5. A ground plane is preferred, but if not available, keep
the signal and power grounds segregated with small
signal components returning to the SGND pin at one
point which is then connected to the PGND pin.
6. Flood all unused areas on all layers with copper. Flood-
ing with copper will reduce the temperature rise of
power components. These copper areas should be
connected to one of the input supplies: PV IN , PGND,
SV IN or SGND.
SV IN
PV IN
V IN
2.5V TO
5.5V
FC
C1
22μF
PGND
RS1
BM 1M
PS RS2
1M
R3
13k
SYNC/MODE V FB
I TH SHDN/R T
SGND PGND
C3
1000pF
PGOOD
LTC3568 SW
R5
100k
PGOOD
3.3V
R4 R1A
324k 280k
2.5V
R1B
412k
L1
2μH
R2 887K
1.8V
C4 22pF
R1C
698k
V OUT
1.8V/2.5V/3.3V
AT 1.8A
C2
22μF
x2
3568 F07a
SGND
SGND
GND
SGND
PGND
NOTE: IN DROPOUT, THE OUTPUT TRACKS THE INPUT VOLTAGE
C1, C2: TAIYO YUDEN JMK325BJ226MM
L1: TOKO A915AY-2ROM (D53LC SERIES)
Figure 7. General Purpose Buck Regulator Using Ceramic Capacitors
Efficiency vs Load Current
100
95
90
85
Burst Mode
OPERATION
80
PULSE SKIP
FORCED CONTINUOUS
75
70
1
10
V IN = 3.3V
V OUT = 2.5V
CIRCUIT OF FIGURE 7
100 1000 10000
LOAD CURRENT (mA)
3568 F07b
3568fa
相关PDF资料 |
PDF描述 |
|---|---|
| LTC3569IFE#TRPBF | IC REG BUCK SYNC ADJ 16TSSOP |
| LTC3600EMSE#PBF | IC REG BUCK SYNC ADJ 1.5A 12MSOP |
| LTC3601IUD#TRPBF | IC REG BUCK SYNC ADJ 1.5A 16QFN |
| LTC3602IFE#TRPBF | IC REG BUCK SYNC ADJ 16TSSOP |
| LTC3603IUF#TRPBF | IC REG BUCK SYNC ADJ 2.5A 20QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3569 | 制造商:LINER 制造商全称:Linear Technology 功能描述:7-Channel Confi gurable High Power PMIC |
| LTC3569EFE | 制造商:Linear Technology 功能描述:DC/DC Converter Chip |
| LTC3569EFE#PBF | 功能描述:IC REG BUCK SYNC ADJ 16TSSOP 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:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 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:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LTC3569EFE#TRPBF | 功能描述:IC REG BUCK SYNC ADJ 16TSSOP 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:2,500 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V，1.5V，1.8V，2.5V 输入电压:2.7 V ~ 20 V PWM 型:- 频率 - 开关:- 电流 - 输出:50mA 同步整流器:是 工作温度:-40°C ~ 125°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 裸露焊盘 |
| LTC3569EFE-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Triple Buck Regulator With 1.2A and Two 600mA Outputs and Individual Programmable References |
发布紧急采购，3分钟左右您将得到回复。