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参数资料
| 型号： | LTC1266CS#TR-3.3 |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 0.150 INCH, PLASTIC, SO-16 |
| 文件页数： | 15/20页 |
| 文件大小： | 245K |
| 代理商： | LTC1266CS#TR-3.3 |
4
LTC1266
LTC1266-3.3/LTC1266-5
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IQ1
VIN Pin DC Supply Current (Note 3)
Normal Mode
3.5V < VIN < 18V
2.1
3.3
mA
Sleep Mode
3.5V < VIN < 18V
170
260
A
Shutdown
VSHUTDOWN = 2.1V, 3.5V < VIN < 18V
25
60
A
IQ2
PWR VIN DC Supply Current (Note 3)
Normal Mode
3.5V < PWR VIN < 18V
20
50
A
Sleep Mode
3.5V < PWR VIN < 18V
1
7
A
Shutdown
VSHUTDOWN = 2.1V, 3.5V < PWR VIN < 18V
1
7
A
VSENSE1
Current Sense Threshold
VBINH = 0V
(Burst Mode Operation Enabled)
LTC1266CS, LTC1266IS
VSENSE– = 3.3V, VFB = VOUT/2.64 + 25mV (Forced)
25
mV
LTC1266CS
VSENSE– = 3.3V, VFB = VOUT/2.64 – 25mV (Forced)
135
155
180
mV
LTC1266IS
VSENSE– = 3.3V, VFB = VOUT/2.64 – 25mV (Forced)
135
155
190
mV
LTC1266-3.3, LTC1266-5 (I and C)
VSENSE– = VOUT + 100mV (Forced)
25
mV
LTC1266CS-3.3, LTC1266CS-5
VSENSE– = VOUT – 100mV (Forced)
135
155
180
mV
LTC1266IS-3.3, LTC1266IS-5
VSENSE– = VOUT – 100mV (Forced)
135
155
190
mV
VSENSE2
Current Sense Threshold
VBINH = 2.1V
(Burst Mode Operation Disabled)
LTC1266CS, LTC1266IS
VSENSE
– 3.3V, VFB = VOUT/2.64 + 25mV (Forced)
–20
mV
LTC1266CS
VSENSE– 3.3V, VFB = VOUT/2.64 – 25mV (Forced)
130
155
185
mV
LTC1266IS
VSENSE– 3.3V, VFB = VOUT/2.64 – 25mV (Forced)
130
155
195
mV
LTC1266-3.3, LTC1266-5 (I and C)
VSENSE
– = VOUT + 100mV (Forced)
–20
mV
LTC1266CS-3.3, LTC1266CS-5
VSENSE– = VOUT – 100mV (Forced)
130
155
185
mV
LTC1266IS-3.3, LTC1266IS-5
VSENSE– = VOUT – 100mV (Forced)
130
155
195
mV
VSHDN
Shutdown Pin Threshold
C Grade
0.55
0.8
2
V
I Grade
0.50
0.8
2
V
tOFF
Off-Time (Note 4)
CT = 390pF, ILOAD = 700mA, C Grade
3.8
5
6.5
s
CT = 390pF, ILOAD = 700mA, I Grade
3.8
5
7.0
s
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: TJ is calculated from the ambient temperature TA and power
dissipation PD according to the following formula:
TJ = TA + (PD × 110°C/W)
Note 3: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See Applications Information.
Note 4: In applications where RSENSE is placed at ground potential, the off-
time increases approximately 40%.
Note 5: The LTC1266CS, LTC1266CS-3.3, LTC1266-5 and LTC1266ACS
are not tested and not quality assurance sampled at – 40
°C and 85°C.
These specifications are guaranteed by design and/or correlation. The
LTC1266IS, LTC1266IS-3.3, LTC1266IS-5 and LTC1266AIS are
guaranteed and tested over the – 40
°C to 85°C operating temperature
range.
Note 6: Unless otherwise noted the specifications for the LTC1266A are
the same as those for the LTC1266.
Note 7: tr and tf are measured at 10% and 90% levels.
–40
°C < TA < 85°C (Note 5), VIN = 10V, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
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|---|---|
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| LTC1266IS#TR-5 | SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16 |
| LTC1266IS-5 | SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16 |
| LTC1474CS8-3.3#TR | 0.75 A SWITCHING REGULATOR, PDSO8 |
| LTC1474IS8-5#TR | 0.75 A SWITCHING REGULATOR, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1266IS | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 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:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC1266IS#PBF | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 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:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC1266IS#TR | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 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:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC1266IS#TRPBF | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 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:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR) |
| LTC1266IS-3.3 | 功能描述:IC REG CTRLR BST PWM CM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,000 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:1MHz 占空比:50% 电源电压:9 V ~ 10 V 降压:无 升压:是 回扫:是 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 包装:带卷 (TR) |
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