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參數資料
| 型號： | LT1611CS5 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 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： | 1/12頁 |
| 文件大小： | 263K |
| 代理商： | LT1611CS5 |
1
LT1611
Inverting 1.4MHz Switching
Regulator in SOT-23
I
Very Low Noise: 1mV
P–P
Output Ripple
I
–5V at 150mA from a 5V Input
I
Better Regulation Than a Charge Pump
I
Effective Output Impedance: 0.14
I
Uses Tiny Capacitors and Inductors
I
Internally Compensated
I
Fixed Frequency 1.4MHz Operation
I
Low Shutdown Current: <1
μ
A
I
Low V
CESAT
Switch: 300mV at 300mA
I
Tiny 5-Lead SOT-23 Package
The LT
1611 is the industry’s first inverting 5-lead SOT-23
current mode DC/DC converter. Intended for use in small,
low power applications, it operates from an input voltage
as low as 1.1V and switches at 1.4MHz, allowing the use
of tiny, low cost capacitors and inductors 2mm or less in
height. Its small size and high switching frequency enable
the complete DC/DC converter function to consume less
than 0.25 square inches of PC board area. Capable of
generating –5V at 150mA from a 5V supply or –5V at
100mA from a 3V supply, the LT1611 replaces nonregulated
“charge pump” solutions in many applications.
The LT1611 operates in a dual inductor inverting topology
which filters the input side as well as the output side of the
DC/DC converter. Fixed frequency switching ensures a
clean output free from low frequency noise typically present
with charge pump solutions. No load quiescent current of
the LT1611 is 3mA, while in shutdown quiescent current
drops to 0.5
μ
A. The 36V switch allows V
IN
to V
OUT
differential of up to 33V.
The LT1611 is available in the 5-lead SOT-23 package.
I
MR Head Bias
I
Digital Camera CCD Bias
I
LCD Bias
I
GaAs FET Bias
I
Positive-to-Negative Conversion
V
IN
SHDN
V
IN
5V
V
–5V
150mA
1611 TA01
SW
L1A
22
μ
H
L1B
22
μ
H
D1
GND
LT1611
C1: AVX TAJB226M010
C2: TAIYO YUDEN LMK212BJ105MG
C3: TAIYO YUDEN JMK325BJ226MM (1210 SIZE)
D1: MBR0520
L1: SUMIDA CLS62-220 OR 2
×
MURATA LQH3C220 (UNCOUPLED)
C1
22
μ
F
C3
22
μ
F
C2
1
μ
F
R2
10k
R1
29.4k
1200pF
NFB
+
Figure 1. 5V to –5V, 150mA Low Noise Inverting DC/DC Converter
, LTC and LT are registered trademarks of Linear Technology Corporation.
FEATURES
DESCRIPTIO
U
APPLICATIOU
TYPICAL APPLICATIO
U
V
OUT
20mV/DIV
AC COUPLED
LOAD CURRENT 150mA
100
μ
s/DIV
1611 F10
Transient Response
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PDF描述 |
|---|---|
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| LT1613CS5 | 1.4MHz, Single Cell DC/DC Converter in 5-Lead SOT-23 |
| LT1620 | Controlled Current Battery Charging(控制電流的電池充電器) |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數: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: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) 供應商設備封裝: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 - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:2,500 系列:- 類型:升壓（升壓） 輸出類型:可調式 輸出數: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: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) 供應商設備封裝: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 - 穩壓器 - DC DC 開關穩壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數: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: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) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面: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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