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参数资料
| 型号： | LT3582EUD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INV ADJ DL 16QFN |
| 标准包装： | 2,500 |
| 类型： | 升压（升压），反相 |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 3.2 V ~ 12.78 V，-1.2 V ~ -13.95 V |
| 输入电压： | 2.55 V ~ 5.5 V |
| PWM 型： | 混合物 |
| 电流 - 输出： | 350mA，600mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-QFN-EP（3x3） |
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LT3582/LT3582-5/LT3582-12
Boost and Single Inductor
Inverting DC/DC Converters with
Optional I 2 C Programing and OTP
FEATURES
DESCRIPTION
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Output Voltages:
3.2V to 12.775V and –1.2V to –13.95V (LT3582)
5V and –5V (LT3582-5)
12V and –12V (LT3582-12)
Digitally Re-Programmable (LT3582) via I 2 C for:
Output Voltages
Power Sequencing
Output Voltage Ramp Rates
Power-Up Defaults Settable with Non-Volatile OTP
(LT3582)
I 2 C Compatible Interface (Standard Mode*)
All Power Switches Integrated
350mA Current Limit (Boost)
600mA Current Limit (Inverting)
All Feedback Resistors Integrated
Input Voltage Range: 2.55V to 5.5V
Low Quiescent Current
325μA in Active Mode
0.01μA in Shutdown Mode
Integrated Output Disconnect
Tiny 16-Pin 3mm × 3mm QFN Package
The LT ? 3582/LT3582-5/LT3582-12 are dual DC/DC converters
featuring positive and negative outputs and integrated feedback
resistors. The LT3582, with its built-in One Time Programming
(OTP), has con?gurable output settings via the I 2 C interface,
including output voltage settings, power-up sequencing,
power-down discharge, and output voltage ramp rates. LT3582
settings can be changed adaptively in the ?nal product, or set
during manufacturing and made permanent using the built in
non-volatile OTP memory. The positive output voltage can be
set between 3.2V and 12.775V in 25mV steps. The negative
output voltage can be set between –1.2V and –13.95V in
–50mV steps. The LT3582-5 and LT3582-12 are pre-con?gured
at the factory for ±5V and ±12V outputs respectively, and as
such, don’t require the use of the I 2 C interface.
The LT3582 series includes two monolithic converters,
one Boost and one Inverting. The Boost converter has an
integrated power switch and output disconnect switch.
The Inverting converter uses a single inductor topology
and includes an integrated power switch. Both Boost
and Inverting converters use a novel** control scheme
resulting in low output voltage ripple while allowing for high
AMOLED Power
CCD Power
General Purpose DC/DC Conversion
APPLICATIONS
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conversion ef?ciency over a wide load current range. The
LT3582 series is available in a 16-pin 3mm × 3mm QFN.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
* Input thresholds are reduced to allow communication with low voltage digital ICs.
(See Electrical Characteristics).
** Patent Pending
TYPICAL APPLICATION
±12V Supplies from a Single 5V Input
Ef?ciency and Power Loss
SWN
SHDN
95
V OUTP
350
6.8μH
SWN
V IN
6.8μH
INPUT
4.5V TO 5.5V
85
V OUTN
300
GND
LT3582
SWP
4.7μF
75
250
200
V NEG
10μF
CAPP
1μF
65
150
–12V
85mA
I 2 C
INTERFACE
OPTIONAL ON
LT3582-5/LT3582-12
V OUTN
SDA
SCL
CA
CAPP
V OUTP
V PP
RAMPP RAMPN
3582512 TA01a
4.7μF
V POS
12V
80mA
55
45
35
0.1
1 10
100
50
0
100
10nF
10nF
LOAD CURRENT (mA)
3582512 TA01b
3582512fb
1
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|---|---|
| LT3585-0 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Photofl ash Chargers with Adjustable Input Current and IGBT Drivers |
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| LT3585EDDB-0#TRPBF | 功能描述:IC CHARGER PHOTOFLASH 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP（4x4） 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR |
| LT3585EDDB-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Photofl ash Chargers with Adjustable Input Current and IGBT Drivers |
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