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參數(shù)資料
| 型號(hào)： | LTC3026 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 1.5A Low Input Voltage VLDO Linear Regulator |
| 中文描述： | 1.5A的低輸入電壓VLDO線性穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 201K |
| 代理商： | LTC3026 |
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LTC3026
1
3026f
TYPICAL APPLICATIO
1.2V Output Voltage from 1.5V Input Supply
U
APPLICATIU
FEATURES
DESCRIPTIOU
The LTC
3026 is a very low dropout (VLDO
TM
) linear
regulator that can operate at input voltages down to 1.14V.
The device is capable of supplying 1.5A of output current
with a typical dropout voltage of only 100mV. To allow
operation at low input voltages the LTC3026 includes a
boost converter that provides the necessary headroom for
the internal LDO circuitry.
Output current comes directly from the input supply to
maximize efficiency. The boost converter requires only a
small chip inductor and ceramic capacitor for operation.
Additionally, the boosted output voltage of one LTC3026
can supply the boost voltage for other LTC3026s, thus
requiring a single inductor for multiple LDOs. A user
supplied boost voltage can be used eliminating the need
for an inductor altogether.
The LTC3026 regulator is stable with 10
μ
F or greater
ceramic output capacitors. The device has a low 0.4V
reference voltage which is used to program the output
voltage via two external resistors. The device also has
internal current limit, overtemperature shutdown, and
reverse output current protection. The LTC3026 is avail-
able in a small 10-lead MSOP or low profile (0.75mm)
10-lead 3mm
×
3mm DFN package.
■
High Efficiency Linear Regulator
■
Post Regulator for Switching Supplies
■
Microprocessor Supply
■
Input Voltage Range:
1.14V to 3.5V (with Boost Enabled)
1.14V to 5.5V (with External 5V Boost)
■
Low Dropout Voltage: 100mV at I
OUT
= 1.5A
■
Adjustable Output Range: 0.4V to 2.6V
■
Output Current: Up to 1.5A
■
Excellent Supply Rejection Even Near Dropout
■
Shutdown Disconnects Load from V
IN
and V
BST
■
Low Operating Current: I
IN
= 950
μ
A at V
IN
= 1.5V
■
Low Shutdown Current:
I
IN
< 1
μ
A (Typ), I
BST
= 0.1
μ
A (Typ)
■
Stable with 10
μ
F or Greater Ceramic Capacitors
■
Short-Circuit, Reverse Current Protected
■
Overtemperature Protected
■
Available in 10-Lead MSOP and 10-Lead
(3mm
×
3mm) DFN Packages
1.5A Low Input Voltage
VLDO Linear Regulator
SW
5V BOOST
CONVERTER
IN
0.4V
OUT
BST
GND
ADJ
PG
L1
10
μ
H
4.7
μ
F
C
OUT
10
μ
F
V
IN
= 1.5V
V
= 1.2V,
1.5A
OFF ON
100k
8.06k
4.02k
LTC3026
3026 TA01a
SHDN
L1: MURATA LQH2MCN100K02
+
–
4.7
μ
F
Dropout Voltage vs Output Current
I
OUT
(A)
0
D100
150
3026 TA01b
50
0
0.5
1.0
1.5
1.2V
1.5V
2.0V
2.6V
, LTC and LT are registered trademarks of Linear Technology Corporation.
VLDO is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Patent Pending
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC3026_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5A Low Input Voltage VLDO Linear Regulator |
| LTC3026_1208 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:1.5A Low Input Voltage VLDO Linear Regulator |
| LTC3026EDD | 制造商:Linear Technology 功能描述:LDO Regulator Pos 0.4V to 2.6V 1.5A 10-Pin DFN EP |
| LTC3026EDD#PBF | 功能描述:IC REG LDO ADJ 1.5A 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:8V 輸入電壓:10.5 V ~ 23 V 電壓 - 壓降（標(biāo)準(zhǔn)）:1.7V @ 40mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:100mA（最小值） 電流 - 限制（最?。?- 工作溫度:0°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:1075 (CN2011-ZH PDF) 其它名稱:296-24390-1 |
| LTC3026EDD#PBF | 制造商:Linear Technology 功能描述:Linear Voltage Regulator IC 制造商:Linear Technology 功能描述:IC, ADJ LDO REG 0.4V TO 2.6V 1.5A DFN-10 |
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