參數(shù)資料
型號(hào): LTC3770EG
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: Synchronous Controller with Margining, Tracking and PLL
中文描述: 4 A SWITCHING CONTROLLER, PDSO28
封裝: 5.30 MM, PLASTIC, SSOP-28
文件頁數(shù): 23/24頁
文件大?。?/td> 302K
代理商: LTC3770EG
23
LTC3770
3770f
U
PACKAGE DESCRIPTIO
UH Package
32-Lead Plastic QFN (5mm
×
5mm)
(Reference LTC DWG # 05-08-1693)
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.
U
TYPICAL APPLICATIO
1.8V/5A at 450kHz with Tracking
INTV
CC
24
23
22
21
20
19
18
17
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
PLLFLTR PLLIN V
IN
V
INSNS
ZV
IN
LTC3770EUH
3770 TA02a
PGOOD V
ON
RUN FCB
FCB
V
REFOUT
MPGM TRACK/SS
Z0 BOOST TG
SW
SENSE+
SENSE–
PGND
BG
DRV
CC
INTV
CC
Z2
Z1
V
RNG
V
FB
I
TH
SGND
R1
30.1k
R2
60.4k
CC1
1000pF
MARGIN1
V
REFIN
I
ON
MARGIN0
L1: BI TECH 1.8
H HM65-H1R8-TB
M1, M2: PHILIPS PH3230
C
IN
: TDK C4532X5R1H685M
C
OUT
: PANASONIC EEFUE0G181R
MARGIN1
RUN
TRACK/SS
PGOOD
MARGIN0
R
ON
75k
R5
10k
R
C
10k
R6
200k
R
RUN
51k
R
100k
CC2
100pF
C
F
220pF
V
CC
5V
M1
PH3230
CV
CC
10
μ
F
DB
CMDSH-3
D1
B340A
C
IN
6.8
μ
F
50V
x3
V
OUT
1.8V
5A
V
4V TO 28V
CB
0.22
μ
F
M2
PH3230
+
L1
1.8
μ
H
C
OUT3
22
μ
F
X5R
x2
C
OUT
180
μ
F
4V
x2
+
R8
51k
R7
47k
1000pF
5.00
0.10
(4 SIDES)
NOTE:
1. DRAWING PROPOSED TO BE A JEDEC PACKAGE OUTLINE
M0-220 VARIATION WHHD-(X) (TO BE APPROVED)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON THE TOP AND BOTTOM OF PACKAGE
PIN 1
TOP MARK
(NOTE 6)
0.40
±
0.10
0.23 TYP
(4 SIDES)
31
1
2
32
BOTTOM VIEW—EXPOSED PAD
3.45
0.10
(4-SIDES)
0.75
±
0.05
R = 0.115
TYP
0.25
±
0.05
0.50 BSC
(UH) QFN 0603
0.200 REF
0.00 – 0.05
0.70
±
0.05
3.45
0.05
(4 SIDES)
4.10
±
0.05
5.50
±
0.05
0.25
±
0.05
0.50 BSC
PACKAGE
OUTLINE
RECOMMENDED SOLDER PAD LAYOUT
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LTC3770EUH#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:是 類別: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 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)
LTC3772BEDDB#TRMPBF 功能描述:IC REG CTRLR BUCK PWM CM 8-DFN RoHS:是 類別: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 升壓:是 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤 包裝:帶卷 (TR)