参数资料
| 型号： | LTC3026EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.5A 10-DFN |
| 产品培训模块： | More Information on LDOs |
| 标准包装： | 121 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 0.4 V ~ 2.6 V |
| 输入电压： | 1.14 V ~ 5.5 V |
| 电压 - 压降（标准）： | 0.1V @ 1.5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.5A（最小） |
| 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 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1334 (CN2011-ZH PDF) |
LTC3026
ELECTRICAL CHARACTERISTICS (BOOST ENABLED or DISABLED)
The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at
T J = 25°C. V IN = 1.5V, V OUT = 1.2V, C IN = C BST = 1μF, C OUT = 10μF (all capacitors ceramic) unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IH SHDN
V IL SHDN
SHDN Input High Voltage
SHDN Input Low Voltage
1.14V ≤ V IN ≤ 3.5V
3.5V ≤ V IN ≤ 5.5V
1.14V ≤ V IN ≤ 5.5V
l
l
l
1.0
1.2
0.4
V
V
V
I IH SHDN
I IL SHDN
SHDN Input High Current
SHDN Input Low Current
SHDN = V IN
SHDN = 0V
–1
–1
1
1
μA
μA
V OLPG
PG Output Low Voltage
I PG = 2mA
l
0.1
0.4
V
I OHPG
PG Output High Leakage Current V PG = 5.5V
0.01
1
μA
PG
Output Threshold (Note 4)
PG High to Low
PG Low to High
–12
–10
–9
–7
–6
–4
%
%
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime. This IC has overtemperature protection that is
intended to protect the device during momentary overload conditions.
Junction temperatures will exceed 125°C when overtemperature is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 2: Minimum Operating Voltage required for regulation is:
V IN ≥ V OUT(MIN) + V DROPOUT
Note 3: When using BST to drive loads other than LTC3026s, the load
must be high impedance during start-up (i.e. prior to PG going high).
Note 4: PG threshold expressed as a percentage difference from the
“V ADJ Regulation Voltage” as given in the table.
Note 5: Operating conditions are limited by maximum junction temperature.
The regulated output voltage specification will not apply for all possible
combinations of input voltage and output current. When operating at
maximum input voltage, the output current range must be limited. When
operating at maximum output current, the input voltage range must be limited.
Note 6: Dropout voltage is minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout, the
output voltage will be equal to V IN – V DROPOUT .
Note 7: To maintain correct regulation
V OUT ≤ V BST – 2.4V
Note 8: The LTC3026 is tested under pulsed load conditions such
that T J ≈ T A . The LTC3026E is guaranteed to meet specifications from
0°C to 125°C junction temperature. Specifications over the –40°C to
125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTC3026I is guaranteed over the –40°C to 125°C operating junction
temperature range. Note that the maximum ambient temperature
consistent with these specifications is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
impedance and other environmental factors. The junction temperature
(T J , in °C) is calculated from the ambient temperature (T A , in °C) and
power dissipation (P D , in watts) according to the formula:
T J = T A + (P D ? θ JA ), where θ JA (in °C/W) is the package thermal
impedance.
TYPICAL PERFORMANCE CHARACTERISTICS
1.50
1.25
1.00
0.75
IN Supply Current with Boost
Converter Enabled
200
150
100
BST Supply Current with Boost
Converter Disabled
200
150
100
IN Supply Current with Boost
Converter Disabled
0.50
0.25
–40°C
25°C
85°C
50
V BST = 5V
–40°C
25°C
85°C
125°C
50
V BST = 5V
–40°C
25°C
85°C
125°C
0
1.0
1.5
2.0
2.5
3.0
3.5
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
V IN (V)
3026 G01
V IN (V)
3026 G02
V IN (V)
3026 G03
3026ff
4
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