参数资料
型号: LTC1872ES6#TRM
厂商: Linear Technology
文件页数: 12/12页
文件大小: 0K
描述: IC REG CTRLR BST PWM CM SOT23-6
标准包装: 1
PWM 型: 电流模式
输出数: 1
频率 - 最大: 650kHz
电源电压: 2.5 V ~ 9.8 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: SOT-23-6
包装: 剪切带 (CT)
其它名称: LTC1872CS6
LTC1872CS6-ND
LTC1872ES6
LTC1872ES6#TRMCT
LTC1872ES6-ND
LTC1872
TYPICAL APPLICATIO
LTC1872 – 2.5V to 3.3V/0.5A Boost Converter
LTC1872 2.7V to 9.8V Input
to 3.3V/1.2A Output SEPIC Converter
SENSE –
0.1 μ F
CERAMIC
+
220pF
C1
100 μ F
10V
10k
1
2
3
I TH /RUN V IN
LTC1872
GND SENSE –
V FB NGATE
5
4
6
R1
0.034 ?
L1
4.7 μ H
M1 D1
U1
C2
2 × 100 μ F
10V
332k
V OUT
3.3V
0.5A
C C1
220pF R C1
10k 1
I TH /RUN V IN
LTC1872
2
GND
3
V FB NGATE
R f2
80.6k
R f1
252k
5
4
6
L1A
R CS
0.03 ?
L1B
M1
D1
MBRM120
CS
4.7 μ F
10V
+
C IN
10 μ F
10V, X5R
C01
180 μ F
4V, SP
V IN
2.7V TO 9.8V
V OUT
3.3V/1.2A
1872 TA05
V IN
–2.5V
C1, C2: AVX TPSE107M010R0100
D1: MOTOROLA MBR2045CT
L1: COILTRONICS UP2B-4R7
M1: Si9804DV
R1: DALE 0.25W
U1: PANASONIC 2SB709A
80.6k
1872 TA03
180k
C IN , CS; TOKO, MURATA OR TAIYO YUDEN
C 01 : PANASONIC EEFUE0G181R
L1: BH ELECTRONICS 511-1012
M1: IRLMS2002
R CS : DALE OR IRC
FOR V OUT = 5V CHANGE
R f1 TO 427k ? AND
C 01 TO 150 μ F, 6V PANASONIC
SP TYPE CAPACITOR
PACKAGE DESCRIPTIO N
Dimensions in inches (millimeters) unless otherwise noted.
S6 Package
2.6 – 3.0
(0.110 – 0.118)
6-Lead Plastic SOT-23
(LTC DWG # 05-08-1634)
2.80 – 3.00
1.50 – 1.75
(0.059 – 0.069)
0.00 – 0.15
(0.00 – 0.006)
0.90 – 1.45
(0.035 – 0.057)
(0.110 – 0.118)
(NOTE 3)
0.35 – 0.55
(0.014 – 0.022)
0.09 – 0.20
(0.004 – 0.008)
(NOTE 2)
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
0.35 – 0.50
(0.014 – 0.020)
SIX PLACES (NOTE 2)
0.90 – 1.30
(0.035 – 0.051)
1.90
(0.074)
REF
0.95
(0.037)
REF
S6 SOT-23 0898
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)
RELATED PARTS
PART NUMBER
LT1304
LT1610
LT1613
LT1619
LT1680
LTC1624
LT1615
LTC1700
LTC1772
LTC3401/LTC3402
DESCRIPTION
Micropower DC/DC Converter with Low-Battery Detector
1.7MHz, Single Cell Micropower DC/DC Converter
1.4MHz, Single Cell DC/DC Converter in 5-Lead SOT-23
Low Voltage Current Mode PWM Controller
High Power DC/DC Step-Up Controller
High Efficiency SO-8 N-Channel Switching Regulator Controller
Micropower Step-Up DC/DC Converter in SOT-23
No R SENSE Synchronous Current Mode DC/DC Step-Up Controller
Constant Frequency Current Mode Step-Down DC/DC Controller
1A/2A, 3MHz Micropower Synchronous Boost Converter
COMMENTS
120 μ A Quiescent Current, 1.5V ≤ V IN ≤ 8V
30 μ A Quiescent Current, V IN Down to 1V
Internally Compensated, V IN Down to 1V
8-Lead MSOP Package, 1.9V ≤ V IN ≤ 18V
Operation Up to 60V, Fixed Frequency Current Mode
8-Pin N-Channel Drive, 3.5V ≤ V IN ≤ 36V
20 μ A Quiescent Current, V IN Down to 1V
95% Efficient, 0.9V ≤ V IN ≤ 5V, 550kHz Operation
V IN 2.5V to 9.8V, I OUT up to 4A, SOT-23 Package
10-Lead MSOP Package, 0.5V ≤ V IN ≤ 5V
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 q FAX: (408) 434-0507 q www.linear-tech.com
1872f LT/TP 0301 4K ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2000
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