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LT1054CDW Datasheet

  • LT1054CDW

  • SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS

  • 442.37KB

  • 26頁

  • TI

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LT1054
SWITCHED CAPACITOR VOLTAGE CONVERTERS
WITH REGULATORS
SLVS033F 鈭?FEBRUARY 1990 鈭?REVISED NOVEMBER 2004
D
D
D
D
D
D
D
D
Output Current . . . 100 mA
Low Loss . . . 1.1 V at 100 mA
Operating Range . . . 3.5 V to 15 V
Reference and Error Amplifier for
Regulation
External Shutdown
External Oscillator Synchronization
Devices Can Be Paralleled
Pin-to-Pin Compatible With the
LTC1044/7660
P PACKAGE
(TOP VIEW)
FB/SD
CAP+
GND
CAP鈭?/div>
1
2
3
4
8
7
6
5
V
CC
OSC
V
REF
V
OUT
DW PACKAGE
(TOP VIEW)
description/ordering information
The LT1054 is a bipolar, switched-capacitor
voltage converter with regulator. It provides higher
output current and significantly lower voltage
losses than previously available converters. An
adaptive-switch
drive
scheme
optimizes
efficiency over a wide range of output currents.
Total voltage drop at 100-mA output current
typically is 1.1 V. This applies to the full
supply-voltage range of 3.5 V to 15 V. Quiescent
current typically is 2.5 mA.
NC
NC
FB/SD
CAP+
GND
CAP鈭?/div>
NC
NC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
NC
V
CC
OSC
V
REF
V
OUT
NC
NC
NC 鈭?No internal connection
The LT1054 also provides regulation, a feature previously not available in switched-capacitor voltage
converters. By adding an external resistive divider, a regulated output can be obtained. This output is regulated
against changes in both input voltage and output current. The LT1054 also can be shut down by grounding the
feedback terminal. Supply current in shutdown typically is 100
碌A(chǔ).
The internal oscillator of the LT1054 runs at a nominal frequency of 25 kHz. The oscillator terminal can be used
to adjust the switching frequency or to externally synchronize the LT1054.
The LT1054C is characterized for operation over a free-air temperature range of 0擄C to 70擄C. The LT1054I is
characterized for operation over a free-air temperature range of 鈭?0擄C to 85擄C.
ORDERING INFORMATION
TA
PDIP (P)
鈭?0 C 85擄C
鈭?0擄C to 85 C
SOIC (DW)
PDIP (P)
0 C 70擄C
0擄C to 70 C
SOIC (DW)
PACKAGE鈥?/div>
Tube of 50
Tube of 40
Reel of 2000
Tube of 50
Tube of 40
Reel of 2000
ORDERABLE
PART NUMBER
LT1054IP
LT1054IDW
LT1054IDWR
LT1054CP
LT1054CDW
LT1054CDWR
LT1054I
LT1054CP
LT1054C
TOP-SIDE
MARKING
LT1054IP
鈥?Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
錚?/div>
2004, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

LT1054CDW 產(chǎn)品屬性

  • 40

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器

  • -

  • 切換式電容器（充電泵）

  • 固定

  • 1

  • -5V

  • 3.5 V ~ 15 V

  • -

  • 25kHz

  • 100mA

  • 無

  • 0°C ~ 70°C

  • 表面貼裝

  • 16-SOIC（0.295"，7.50mm 寬）

  • 管件

  • 16-SOIC

  • 296-9590-5

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