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參數(shù)資料
| 型號： | LT1306ES8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Synchronous, Fixed Frequency Step-Up DC/DC Converter |
| 中文描述： | 2.3 A SWITCHING REGULATOR, 415 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 213K |
| 代理商： | LT1306ES8 |
1
LT1306
TYPICAL APPLICATIO
N
U
APPLICATIU
DESCRIPTIOU
The LT
1306 is a fully integrated, fixed frequency syn-
chronous boost converter capable of generating 5V at 1A
from a Li-Ion cell. The device contains both the main
power switch and synchronous rectifier on chip and
automatically disconnects the output from the input in
shutdown, eliminating the need for external load discon-
nect circuitry. Additionally, the output remains regulated
when V
IN
exceeds V
OUT
, allowing difficult step-up/step-
down converter functions to be easily realized using a
single inductor.
The internal 300kHz oscillator of the LT1306 can be easily
synchronized to an external clock from 425kHz to 500kHz.
This allows switching harmonics to be tightly controlled
and eliminates any beat frequencies that may result from
a multifrequency system. The LT1306 automatically shifts
into power saving Burst Mode
TM
operation at light loads.
At heavy loads the LT1306 operates in fixed frequency
current mode. No-load quiescent current is 160
μ
A and
reduces to 9
μ
A in shutdown mode.
The LT1306 is available in an SO-8 package.
FEATURES
Synchronous, Fixed Frequency
Step-Up DC/DC Converter
I
Output Disconnected from Input During Shutdown
I
Output Voltage Remains Regulated
When V
IN
> V
OUT
I
Controlled Input Current During Start-Up
I
300kHz Current Mode PWM Operation
I
Can Be Externally Synchronized
I
Internal 2A Switches
I
Operates with V
IN
as Low as 1.8V
I
Automatic Burst Mode Operation at Light Loads
I
Quiescent Current: 160
μ
A
I
Shutdown Current: 9
μ
A Typ
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a trademark of Linear Technology Corporation.
I
Satellite Phones
I
Portable Instruments
I
Personal Digital Assistants
I
Palmtop Computers
LOAD CURRENT (mA)
1
60
E
80
85
90
10
100
1000
1306 TA01
75
70
65
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
= 2.6V
V
= 5V
L1 = 10
μ
H
(FIGURE 1)
SW
L1
10
μ
H
D1
C1
1
μ
F
V
IN
S/S
CAP
LT1306
R3
118k
C
Z
68nF
R2
249k
R1
768k
C
IN2
0.1
μ
F
C
IN1
22
μ
F
1-CELL
Li-Ion
C
68pF
C
O2
1
μ
F
C
O1
220
μ
F
C
IN1
: AVX TAJC226M010
C
O1
: AVX TPSE227M010R0100
C
, C
: CERAMIC
C1: AVX TAJA105K020
D1: MMBD914LT1
L1: CTX10-2
1306 F01
5V
1A
OUT
FB
V
C
GND
+
+
+
Efficiency
Figure 1. Single Li-Ion Cell to 5V Converter
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相關(guān)代理商/技術(shù)參數(shù) |
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| LT1306ES8#PBF | 功能描述:IC REG BOOST 5V 1A 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):- 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(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LT1306ES8#TR | 功能描述:IC REG BOOST 5V 1A 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):- 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(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LT1306ES8#TRPBF | 功能描述:IC REG BOOST 5V 1A 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):- 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(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LT1307 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter |
| LT1307B | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single Cell Micropower 600kHz PWM DC/DC Converters |
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