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参数资料
| 型号： | LTC3429ES6#TRM |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC REG BST SYNC ADJ .6A TSOT23-6 |
| 标准包装： | 500 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 2.5 V ~ 4.3 V |
| 输入电压： | 0.5 V ~ 4.4 V |
| PWM 型： | 电流模式，混合 |
| 频率 - 开关： | 500kHz |
| 电流 - 输出： | 600mA |
| 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： | SOT-23-6 细型，TSOT-23-6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | TSOT-23-6 |
| 其它名称： | LTC3429ES6 LTC3429ES6-ND |
LTC3429/LTC3429B
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
V IN Voltage .............................................. – 0.3V to 4.4V
SW Voltage ................................................. – 0.3V to 6V
SHDN, FB Voltage ....................................... – 0.3V to 6V
V OUT ........................................................... – 0.3V to 6V
SW 1
GND 2
FB 3
TOP VIEW
6 V IN
5 V OUT
4 SHDN
ORDER PART
NUMBER
LTC3429ES6
LTC3429BES6
Operating Temperature Range (Note 2) .. – 40 ° C to 85 ° C
Storage Temperature Range ................... – 65 ° C to 150 °
Lead Temperature (Soldering, 10 sec).................. 300 ° C
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T JMAX = 125 ° C, θ JC = 102 ° C/W
S6 PART MARKING
LTH5
LTBMS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 1.2V, V OUT = 3.3V, unless otherwise specified.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Start-Up Voltage
Minimum Operating Voltage
Output Voltage Adjust Range
I LOAD = 1mA, V OUT = 0V
SHDN = V IN (Note 3)
(Note 5)
2.5
0.85
0.5
1
0.65
5
V
V
V
Feedback Voltage
Feedback Input Current
Quiescent Current (Burst Mode Operation)
Quiescent Current (Shutdown)
Quiescent Current (Active)
NMOS Switch Leakage
PMOS Switch Leakage
V FB = 1.25V
V FB = 1.4V (Note 4)
V SHDN = 0V, Not Including Switch Leakage, V OUT = 0V
Measured on V OUT , Nonswitching
V SW = 5V
V SW = 5V, V OUT = 0V
●
1.192
1.230
1
20
0.01
380
0.1
0.1
1.268
50
30
1
550
5
5
V
nA
μ A
μ A
μ A
μ A
μ A
NMOS Switch On Resistance
PMOS Switch On Resistance
0.35
0.45
?
?
NMOS Current Limit
Burst Mode Operation Current Threshold
Current Limit Delay to Output
L = 4.7 μ H (LTC3429 Only)
600
850
1.25
40
mA
mA
ns
Max Duty Cycle
V FB = 1.15V
●
80
90
%
Switching Frequency
●
380
500
620
kHz
SHDN Input High
SHDN Input Low
1
0.35
V
V
SHDN Input Current
Soft-Start Time
V SHDN = 5.5V
SHDN to 90% of V OUT
0.01
2.5
1
μ A
ms
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3429ES6/LTC3429BES6 are guaranteed to meet
performance specifications from 0 ° C to 70 ° C. Specifications over the
–40 ° C to 85 ° C operating temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3: Minimum V IN operation after start-up is only limited by the
battery’s ability to provide the necessary power as it enters a deeply
discharged state.
Note 4: Burst Mode operation I Q is measured at V OUT . Multiply this value
by V OUT /V IN to get the equivalent input (battery) current.
Note 5: For applications where V OUT > 4.3V, an external Schottky diode is
required. See the Applications Information.
3429fa
2
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