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参数资料
| 型号： | LT1026MH#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHED CAPACITOR CONVERTER, MBCY8 |
| 封装： | METAL CAN, TO-5, 8 PIN |
| 文件页数： | 4/8页 |
| 文件大小： | 153K |
| 代理商： | LT1026MH#PBF |
4
LT1026
1026fb
APPLICATIONS INFORMATION
UW
U
The LT1026 is a nonregulating voltage converter that
converts a single input voltage into both a positive and
negative output at up to 15mA. A positive input voltage is
first doubled and then the doubled voltage is inverted. The
voltage output level is dependent on both the input voltage
and the output loading. The total output current available
depends on the individual loading of the outputs since
loading on one output affects the load and the voltage of
the other.
Only four external components are needed for operation.
Two charge pump capacitors and two output storage
capacitors. Nominal value for these capacitors is 1
F, but
the LT1026 will operate (with reduced performance) down
to 0.1
F. Higher value capacitors (22F) will reduce ripple
and slightly lower output impedance. For higher output
currents the outputs of several converters may be paral-
leled with common output capacitors.
The substrate diodes are an inherent part of the IC, and
must always be reversed biased to isolate the individual
transistors. In the LT1026 the substrate is tied to the
negative output. If the negative output is not used, such as
when only the voltage doubler output is needed, – VOUT
must be tied to ground so the substrate diodes are
properly biased. The substrate diodes must never become
forward biased even during overload conditions. For ex-
ample, pulling – VOUT positive with respect to ground can
forward bias the substrate diodes. Clamping the substrate
to ground with an external diode would be needed to
ensure proper operation and prevent the substrate from
carrying any current.
No overload protection is included on the LT1026. Neither
output is damaged by momentary shorts, but during
sustained shorts the resulting high current flow will over-
heat the IC.
Ripple
Output Voltage vs Temperature
OUTPUT CAPACITOR (
F)
1.0
0
RIPPLE
(mV
P-P
)
10
20
30
40
60
2.2
4.7
10
22
1026 TPC07
47
100
50
VIN = 5V
IL = 5mV
BOTH OUTPUTS
TEMPERATURE (
°C)
–50
–10
OUTPUT
VOLTAGE
(V)
–8
–4
–2
0
10
4
0
50
75
LT1026 TPC08
–6
6
8
2
–25
25
100
125
C = 22
F
VIN = 5V
IL = 1mA
TYPICAL PERFORMANCE CHARACTERISTICS
UW
相关PDF资料 |
PDF描述 |
|---|---|
| LT1027CMH/883B | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, MBCY8 |
| LT1027BMH/883B | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, MBCY8 |
| LT1027EMH | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, MBCY8 |
| LT1027DMH | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 5 V, MBCY8 |
| LT1303CS8-3.3 | 1 A SWITCHING REGULATOR, 155 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1027BCN8-5 | 功能描述:IC VREF SERIES PREC 5V 8-PDIP RoHS:否 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:2,000 系列:- 基准类型:旁路，可调节，精度 输出电压:1.24 V ~ 16 V 容差:±0.5% 温度系数:- 输入电压:1.24 V ~ 16 V 通道数:1 电流 - 阴极:100µA 电流 - 静态:- 电流 - 输出:20mA 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:TO-226-3、TO-92-3（TO-226AA）成形引线 供应商设备封装:TO-92-3 包装:带卷 (TR) |
| LT1027BCN8-5#PBF | 功能描述:IC VREF SERIES PREC 5V 8-PDIP RoHS:是 类别:集成电路 (IC) >> PMIC - 电压基准 系列:- 标准包装:3,000 系列:- 基准类型:旁路，精度 输出电压:3V 容差:±0.5% 温度系数:100ppm/°C 输入电压:- 通道数:1 电流 - 阴极:82µA 电流 - 静态:- 电流 - 输出:15mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-TSSOP（5 引线），SC-88A，SOT-353 供应商设备封装:SC-70-5 包装:带卷 (TR) 其它名称:296-20888-2 |
| LT1027BCN8-5#PBF | 制造商:Linear Technology 功能描述:IC VOLTAGE REFERENCE 5V DIP-8 |
| LT1027BCN8-5PBF | 制造商:Linear Technology 功能描述:Voltage Reference Precision 5V 15mA DIP8 |
| LT1027CCN85 | 制造商:lin 功能描述:8-DIP |
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