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参数资料
| 型号： | LTC3252EDE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SWITCHED CAP 12DFN |
| 标准包装： | 2,500 |
| 类型： | 降压（降压），切换电容（充电泵） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.9 V ~ 1.6 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| PWM 型： | Burst Mode? |
| 频率 - 开关： | 1MHz ~ 1.6MHz |
| 电流 - 输出： | 250mA |
| 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： | 12-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 12-DFN（4x3） |
LTC3252
TYPICAL PERFOR A CE CHARACTERISTICS
Oscillator Max/Min Frequency vs
1.2V Output Voltage vs Supply
Supply Voltage
Voltage
1.2V Efficiency vs Load Current
2.0
1.9
1.30
1.28
T A = 25 ° C
100
T A = 25 ° C
1.8
1.7
–40 ° C MAX
25 ° C MAX
1.26
80
1.6
1.5
1.4
85 ° C MAX
1.24
1.22
1.20
I OUT = 0mA
I OUT = 50mA
60
1.3
1.2
1.1
1.0
–40 ° C MIN
25 ° C MIN
1.18
1.16
1.14
I OUT = 250mA
40
20
V IN = 2.8V
V IN = 3.1V
V IN = 3.5V
0.9
85 ° C MIN
1.12
V IN = 4.5V
0.8
2.7
3.2
3.7
4.2
4.7
5.2
1.10
2.7
3.2
3.7
4.2
4.7
5.2
0
0.1
1
10
100
1000
V IN (V)
3252 G07
Output Current Transient
Response
V IN (V)
3252 G08
Line Transient Response
I OUT (mA)
3252 G09
I OUT
250mA
20mA
V IN
4.5V
3.5V
V OUT
20mV/DIV
AC
V OUT
10mV/DIV
AC
V IN = 3.6V
V OUT = 1.5V
3252 G11
V OUT = 1.5V
I OUT = 150mA
3252 G12
PI FU CTIO S
FB1 (Pin 1): Feedback Input Pin 1. An output divider
should be connected from OUT1 to FB1 to program the
output voltage.
EN1 (Pin 2): Input Enable Pin 1. When EN1 is high, OUT1
is enabled. When EN1 is low OUT1 is shut down.
V IN (Pin 3): Input Supply Voltage. Operating V IN may be
between 2.7V and 5.5V. Bypass V IN with a ≥ 4.7 μ F (1 μ F
min) low ESR ceramic capacitor to GND (C IN ).
C1 + (Pin 4): Flying Capacitor 1 Positive Terminal (C1).
OUT1 (Pin 5): Regulated Output Voltage 1. OUT1 is
disconnected from V IN when in shutdown. Bypass OUT1
with a low ESR ceramic capacitor to GND (C O1 ). See
Output Capacitor Selection section for size requirements.
C1 – (Pin 6): Flying Capacitor 1 Negative Terminal (C1).
GND (Pin 7): Ground. Connect to a ground plane for best
performance.
3252f
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC3255EDD#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-DFN 制造商:Linear Technology 功能描述:IC, STEP DWN CHARGE PUMP, 500KHZ, DFN-10 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Wide VIN Range Fault Protected 50mA Step-Down Ch |
| LTC3255EDD#TRPBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-DFN |
| LTC3255EMSE#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-MSOP 制造商:Linear Technology 功能描述:IC, STEP DWN CHARGE PUMP, 500KHZ, MSOP10 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Wide VIN Range Fault Protected 50mA Step-Down Ch 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK, ADJ, 500KHZ, MSOP-10, Primary Input Voltage:48V, No. of Outputs:1, Output Current:50mA, No. of Pins:10, Operating Temperature Min:-40C, Operating Temperature Max:125C, Package / Case:10-MSOP , RoHS Compliant: Yes |
| LTC3255EMSE#TRPBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-MSOP 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Wide VIN Range Fault Protected 50mA Step-Down Ch |
| LTC3255HDD#PBF | 制造商:Linear Technology 功能描述:IC REG BUCK SWITCHED CAP 10-DFN 制造商:Linear Technology 功能描述:IC, STEP DWN CHARGE PUMP, 500KHZ, DFN-10 制造商:Linear Technology 功能描述:DC-DC CONV, BUCK, ADJ, 500KHZ, DFN-10, Primary Input Voltage:48V, No. of Outputs:1, Output Current:50mA, No. of Pins:10, Operating Temperature Min:-40C, Operating Temperature Max:150C, Package / Case:10-DFN , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DP-Charge Pump/General Purpose, Wide VIN Range Fault Protected 50mA Step-Down Ch |
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