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參數(shù)資料
| 型號： | LT1054CP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHED CAPACITOR REGULATOR, 35 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | ROHS COMPLIANT, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 23/30頁 |
| 文件大小： | 607K |
| 代理商： | LT1054CP |
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LT1054
SWITCHED-CAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F FEBRUARY 1990 REVISED NOVEMBER 2004
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
LT1054C
LT1054I
UNIT
PARAMETER
TEST CONDITIONS
TA
MIN
TYP
MAX
UNIT
VO
Regulated output voltage
VCC = 7 V, TJ = 25°C, RL = 500 Ω, See Note 5
25
°C
4.7
5
5.2
V
Input regulation
VCC = 7 V to 12 V, RL = 500 Ω, See Note 5
Full range
5
25
mV
Output regulation
VCC = 7 V, RL = 100 Ω to 500 Ω, See Note 5
Full range
10
50
mV
Voltage loss,
C
100 F tantalum
IO = 10 mA
Full range
0.35
0.55
V
Voltage loss,
VCC |VO (see Note 6)
CI = CO = 100-μF tantalum
IO = 100 mA
Full range
1.1
1.6
V
Output resistance
ΔIO = 10 mA to 100 mA,
See Note 7
Full range
10
15
Ω
Oscillator frequency
VCC = 3.5 V to 15 V
Full range
15
25
35
kHz
V
Reference voltage
I
60 A
25
°C
2.35
2.5
2.65
V
Vref
Reference voltage
I(REF) = 60 μA
Full range
2.25
2.75
V
Maximum switch current
25
°C
300
mA
I
Supply current
I
0
VCC = 3.5 V
Full range
2.5
4
mA
ICC
Supply current
IO = 0
VCC = 15 V
Full range
3
5
mA
Supply current in shutdown
V(FB/SD) = 0 V
Full range
100
200
μA
Full range is 0
°C to 70°C for the LT1054C and 40°C to 85°C for the LT1054I.
All typical values are at TA = 25°C.
NOTES:
5. All regulation specifications are for a device connected as a positive-to-negative converter/regulator with R1 = 20 k
Ω, R2 = 102.5 kΩ,
external capacitor CIN = 10 μF (tantalum), external capacitor COUT = 100 μF (tantalum) and C1 = 0.002 μF (see Figure 15).
6. For voltage-loss tests, the device is connected as a voltage inverter, with terminals 1, 6, and 7 unconnected. The voltage losses
may be higher in other configurations. CIN and COUT are external capacitors.
7. Output resistance is defined as the slope of the curve (
ΔVO versus ΔIO) for output currents of 10 mA to 100 mA. This represents
the linear portion of the curve. The incremental slope of the curve is higher at currents less than 10 mA due to the characteristics
of the switch transistors.
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| LT1054CS8 | 功能描述:IC REG SWITCHD CAP DBL INV 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應商設備封裝:10-MSOP 裸露焊盤 |
| LT1054CS8#PBF | 功能描述:IC REG SWITCHD CAP DBL INV 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
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