參數(shù)資料
型號(hào)： LTC1772BES6
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 穩(wěn)壓器
英文描述： Constant Frequency Current Mode Step-Down DC/DC Controller in SOT-23
中文描述： 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO6
封裝： PLASTIC, MO-193, SOT-23, 6 PIN
文件頁(yè)數(shù)： 12/12頁(yè)
文件大?。?/td> 196K
代理商： LTC1772BES6
12
LTC1772B
PART NUMBER
LT1375/LT1376
LTC1622
DESCRIPTION
1.5A, 500kHz Step-Down Switching Regulators
Low Input Voltage Current Mode Step-Down DC/DC Controller
COMMENTS
High Frequency, Small Inductor, High Efficiency
V
IN
2V to 10V, I
OUT
Up to 4.5A, Synchronizable to
750kHz Optional Burst Mode Operation, 8-Lead MSOP
N-Channel Drive, 3.5V
≤
V
IN
≤
36V
97% Efficiency, No Sense Resistor
Low Supply Voltage Range: 2.65V to 8V, I
OUT
= 0.5A
No Need for 5V Supply, Uses Standard Logic Gate
MOSFETs; I
OUT
up to 15A
Two Channels; Minimum C
IN
and C
OUT
, I
OUT
up to 15A
High Efficiency 5V to 3.3V Conversion at up to 15A
10
μ
A Supply Current, 93% Efficiency,
1.23V
≤
V
OUT
≤
18V; 2.8V
≤
V
IN
≤
20V
With Burst Mode Operation for Higher Efficiency
at Light Load Current
2.65V
≤
V
IN
≤
8.5V; 0.8V
≤
V
OUT
≤
V
IN
; Current Mode; 550kHz
2.5V
≤
V
IN
≤
9.8V; 550kHz; 90% Efficiency
LTC1624
LTC1625
LTC1627
LTC1649
High Efficiency SO-8 N-Channel Switching Regulator Controller
No R
SENSE
Low Voltage, Monolithic Synchronous Step-Down Regulator
3.3V Input Synchronous Step-Down Controller
TM
Synchronous Step-Down Regulator
LTC1702
LTC1735
LTC1771
550kHz, 2 Phase, Dual Synchronous Controller
Single, High Efficiency, Low Noise Synchronous Switching Controller
Ultra-Low Supply Current Step-Down DC/DC Controller
LTC1772
Constant Frequency Current Mode Step-Down
DC/DC Controller in SOT-23
95% Efficient Synchronous Step-Down Controller
SOT-23 Step-Up Controller
No R
SENSE
is a trademark of Linear Technology Corporation.
LTC1773
LTC1872
1772bf LT/TP 0201 4K PRINTED IN USA
RELATED PARTS
LINEAR TECHNOLOGY CORPORATION 1999
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
G
FAX: (408) 434-0507
G
www.linear-tech.com
TYPICAL APPLICATIO
N
S
LTC1772B 3.3V to 5V/1A Boost Regulator
R1
0.033
V
IN
3.3V
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTIO
N
U
0.95
(0.037)
REF
1.50 – 1.75
(0.059 – 0.069)
0.35 – 0.55
(0.014 – 0.022)
0.35 – 0.50
(0.014 – 0.020)
SIX PLACES (NOTE 2)
S6 SOT-23 0898
2.80 – 3.00
(0.110 – 0.118)
(NOTE 3)
1.90
(0.074)
REF
0.90 – 1.45
(0.035 – 0.057)
0.90 – 1.30
(0.035 – 0.051)
0.00 – 0.15
(0.00 – 0.006)
0.09 – 0.20
(0.004 – 0.008)
(NOTE 2)
2.6 – 3.0
(0.110 – 0.118)
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DIMENSIONS ARE INCLUSIVE OF PLATING
3. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
4. MOLD FLASH SHALL NOT EXCEED 0.254mm
5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ)
I
TH
/RUN
LTC1772B
R4
10k
R2
422k
R3
80.6k
L1
4.7
μ
H
M1
D1
C3
220pF
U1: FAIRCHILD NC7SZ04
ALSO SEE LTC1872
FOR THIS APPLICATION
GND
V
FB
6
3
4
2
5
5
4
1772 TA03
1
2
3
PGATE
V
IN
SENSE
–
C1
47
μ
F
16V
×
2
V
OUT
5V
1A
C2
100
μ
F
10V
×
2
+
U1
C1: AVXTPSE476M016R0047
C2: AVXTPSE107M010R0100
D1: IR10BQ015
L1: MURATA LQN6C-4R7
M1: Si9804
R1: DALE 0.25W
S6 Package
6-Lead Plastic SOT-23
(LTC DWG # 05-08-1634)
相關(guān)PDF資料
PDF描述
LTC1772CS6 Quadruple 2-Input Positive-NAND Gate 14-SOIC -40 to 85
LTC1772 Constant Frequency Current Mode Step-Down DC/DC Controller in SOT-23
LTC1773 Synchronous Step-Down Regulator Controller(同步步降穩(wěn)壓器)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC1772BES6#PBF 制造商:Linear Technology 功能描述:DC DC Cntrlr Single-OUT Step Down 2.5V to 9.8V Input 6-Pin TSOT-23 制造商:Linear Technology 功能描述:DC-DC CONTROLLER BUCK 5A TS 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BUCK, 5A, TSOT-23-6; Primary Input Voltage:9.8V; No. of Outputs:1; Output Current:5A; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:6-TSOT-23; Supply Voltage Max:9.8V;RoHS Compliant: Yes 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BUCK, 5A, TSOT-23-6; Primary Input Voltage:9.8V; No. of Outputs:1; Output Current:5A; No. of Pins:6; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:6-TSOT-23 ;RoHS Compliant: Yes
LTC1772BES6#TR 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR)
LTC1772BES6#TRM 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR)
LTC1772BES6#TRMPBF 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 特色產(chǎn)品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 標(biāo)準(zhǔn)包裝:1 系列:PowerWise® PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:81% 電源電壓:4.5 V ~ 18 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-5°C ~ 125°C 封裝/外殼:32-WFQFN 裸露焊盤(pán) 包裝:Digi-Reel® 產(chǎn)品目錄頁(yè)面:1303 (CN2011-ZH PDF) 其它名稱(chēng):LM3754SQDKR
LTC1772BES6#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM SOT23-6 RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR)
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