- 您现在的位置：买卖IC网 > PDF目录15270 > LTC1266ACS#TR (Linear Technology)IC REG CTRLR BST PWM CM 16-SOIC PDF资料下载
参数资料
| 型号： | LTC1266ACS#TR |
| 厂商： | Linear Technology |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM CM 16-SOIC |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 400kHz |
| 占空比： | 100% |
| 电源电压： | 3.5 V ~ 18 V |
| 降压： | 是 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
LTC1266
LTC1266-3.3/LTC1266-5
TYPICAL PERFOR A CE CHARACTERISTICS
Operating Frequency
Off-Time vs Output Voltage
vs (V IN – V OUT ) Voltage
Current Sense Threshold Voltage
100
80
V SENSE – = V OUT
3.0
2.5
V OUT = 3.3V
0 ° C
200
150
MAX THRESHOLD
60
2.0
1.5
25 ° C
70 ° C
100
40
1.0
50
MIN THRESHOLD (Burst Mode
OPERATION ENABLED)
20
LTC1266-5
0.5
0
MIN THRESHOLD (Burst Mode
OPERATION INHIBIT)
LTC1266-3.3
0
0
1
2
3 4
5
0
0
2
4
6
8
10
12
14
16
–50
0
20
40
60
80
100
OUTPUT VOLTAGE (V)
PI FU CTIO S
1266 G10
(V IN – V OUT ) VOLTAGE (V)
1266 G11
TEMPERATURE ( ° C)
1266 G12
TDRIVE (Pin 1): High Current Drive for Topside MOSFET.
This MOSFET can be either P-channel or N-channel, user
selectable by Pin 3. Voltage swing at this pin is from PWR
V IN to ground.
PWR V IN (Pin 2): Power Suppy for Drive Signals. Must be
closely decoupled to power ground (Pin 15).
PINV (Pin 3): Phase Invert. Sets the phase of the topside
driver to drive either a P-channel or an N-channel MOSFET
as follows:
P-channel: Pin 3 = 0V
N-channel: Pin 3 = PWR V IN
BINH (Pin 4): Burst Mode Operation Inhibit. A CMOS logic
high on this pin will disable the Burst Mode operation
feature forcing continuous operation down to zero load.
V IN (Pin 5): Main Supply Pin.
C T (Pin 6): External Capacitor. C T from Pin 4 to ground sets
the operating frequency. The actual frequency is also
dependent on the input voltage.
I TH (Pin 7): Gain Amplifier Decoupling Point. The current
comparator threshold increases with the Pin 7 voltage.
SENSE – (Pin 8): Connects to internal resistive divider
which sets the output voltage in LTC1266-3.3 and
LTC1266-5 versions. Pin 8 is also the (–) input for the
current comparator.
6
SENSE + (Pin 9): The (+) Input to the Current Comparator.
A built-in offset between Pins 8 and 9 in conjunction with
R SENSE sets the current trip threshold.
V FB (Pin 10): For the LTC1266 adjustable version, Pin 10
serves as the feedback pin from an external resistive
divider used to set the output voltage. On LTC1266-3.3
and LTC1266-5 versions this pin is not used.
SHDN (Pin 11): When grounded, the LTC1266 series
operates normally. Pulling Pin 11 high holds both
MOSFETs off and puts the LTC1266 in micropower shut-
down mode. Requires CMOS logic signal with t r , t f < 1 μ s.
Should not be left floating.
SGND (Pin 12): Small-Signal Ground. Must be routed
separately from other grounds to the (–) terminal of C OUT .
LB IN (Pin 13): Input to the Low-Battery Comparator. This
input is compared to an internal 1.25V reference.
LB OUT (Pin 14): Open Drain Output of the Low-Battery
Comparator. This pin will sink current when Pin 13 is
below 1.25V.
PGND (Pin 15): Driver Power Ground. Connects to source
of N-channel MOSFET and the (–) terminal of C IN .
BDRIVE (Pin 16): High Current Drive for Bottom
N-Channel MOSFET. Voltage swing at Pin 16 is from
ground to PWR V IN .
相关PDF资料 |
PDF描述 |
|---|---|
| LTC1625CGN#TRPBF | IC REG CTRLR BUCK PWM CM 16-SSOP |
| LTC1625CGN#TR | IC REG CTRLR BUCK PWM CM 16-SSOP |
| LTC3891HUDC#TRPBF | IC REG CTRLR BUCK PWM CM 20-QFN |
| LTC3709EG#PBF | IC REG CTRLR BUCK PWM CM 36-SSOP |
| LTC3709EUH#PBF | IC REG CTRLR BUCK PWM CM 32-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC10E404FNR2G | 功能描述:逻辑门 5V ECL Quad Diff AND/NAND RoHS:否 制造商:Texas Instruments 产品:OR 逻辑系列:LVC 栅极数量:2 线路数量（输入/输出）:2 / 1 高电平输出电流:- 16 mA 低电平输出电流:16 mA 传播延迟时间:3.8 ns 电源电压-最大:5.5 V 电源电压-最小:1.65 V 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:DCU-8 封装:Reel |
| MC10E411FN | 功能描述:时钟缓冲器 5V PECL/NECL RAMBus RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
| MC10E411FNG | 功能描述:时钟缓冲器 5V PECL/NECL RAMBus 1:9 时钟缓冲器 RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
| MC10E411FNR2 | 功能描述:时钟缓冲器 5V PECL/NECL RAMBus RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
| MC10E411FNR2G | 功能描述:时钟缓冲器 5V PECL/NECL RAMBus 1:9 时钟缓冲器 RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。