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參數(shù)資料
| 型號： | LT1611CS5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Isolated Flyback Switching Regulator with 9V Output |
| 中文描述： | 0.8 A SWITCHING REGULATOR, 1800 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | PLASTIC, SC-74A, SOT-23, 5 PIN |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 263K |
| 代理商： | LT1611CS5 |
11
LT1611
TYPICAL APPLICATIO S
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Table 1. Inductor Vendors
VENDOR
Sumida
PHONE
(847) 956-0666
URL
www.sumida.com
PART
CLS62-22022
CD43-470
LQH3C-220
CTX20-1
COMMENT
22
μ
H Coupled
47
μ
H
22
μ
H, 2mm Height
20
μ
H Coupled, Low DCR
Murata
Coiltronics
(404) 436-1300
(407) 241-7876
www.murata.com
www.coiltronics.com
Table 2. Capacitor Vendors
VENDOR
Taiyo Yuden
AVX
PHONE
(408) 573-4150
(803) 448-9411
URL
www.t-yuden.com
www.avxcorp.com
PART
Ceramic Caps
Ceramic Caps
Tantalum Caps
Ceramic Caps
COMMENT
X5R Dielectric
Murata
(404) 436-1300
www.murata.com
Capacitors
As described previously, ceramic capacitors can be used
with the LT1611 provided loop stability is considered. For
lower cost applications, small tantalum units can be used.
A value of 22
μ
F is acceptable, although larger capacitance
values can be used. ESR is the most important parameter
in selecting an output capacitor. The “flying” capacitor (C2
in the schematic figures) should be a 1
μ
F ceramic type. An
X5R or X7R dielectric should be used to avoid capacitance
decreasing severely with applied voltage. The input by-
pass capacitor is less critical, and either tantalum or
ceramic can be used with little trade-off in circuit perfor-
mance. Some capacitor types appropriate for use with the
LT1611 are listed in Table 2.
Diodes
A Schottky diode is recommended for use with the LT1611.
The Motorola MBR0520 is a very good choice. Where the
input to output voltage differential exceeds 20V, use the
MBR0530 ( a 30V diode). If cost is more important than
efficiency, a 1N4148 can be used, but only at low current
loads.
OPERATIOU
V
IN
SHDN
3.3V
–5V
70mA
1611 TA02
SW
L1
10
μ
H
D1
D2
GND
LT1611
C1, C2: TAIYO YUDEN LMK212BJ105MG
C3: TAIYO YUDEN JMK325BJ226MM
D1, D2: MBR0520
L1: MURATA LQH3C-100
C1
1
μ
F
C3
22
μ
F
C2
1
μ
F
10k
29.4k
NFB
“Charge Pump” Inverting DC/DC Converter
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1611CS5#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Inv 0.9V to 10V 5-Pin TSOT-23 制造商:Linear Technology 功能描述:IC INVERTING REGULATOR 5-SOT-23 制造商:Linear Technology 功能描述:IC, INVERTING REGULATOR, 5-SOT-23 制造商:Linear Technology 功能描述:IC, INVERTING REGULATOR, 5-SOT-23; Primary Input Voltage:10V; No. of Outputs:1; Output Voltage:-5V; Output Current:150mA; No. of Pins:5; Operating Temperature Min:0C; Operating Temperature Max:70C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes |
| LT1611CS5#TR | 功能描述:IC REG INV ADJ 0.3A SOT23-5 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:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC |
| LT1611CS5#TRM | 功能描述:IC REG INV ADJ 0.3A SOT23-5 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:升壓（升壓） 輸出類型:可調(diào)式 輸出數(shù):1 輸出電壓:1.24 V ~ 30 V 輸入電壓:1.5 V ~ 12 V PWM 型:電流模式，混合 頻率 - 開關(guān):600kHz 電流 - 輸出:500mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:8-SOIC |
| LT1611CS5#TRMPBF | 功能描述:IC REG INV ADJ 0.3A SOT23-5 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: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(guān):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(yīng)商設(shè)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 |
| LT1611CS5#TRMPBF | 制造商:Linear Technology 功能描述:Switching Regulator IC |
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