参数资料
型号: LTC1879EGN#PBF
厂商: Linear Technology
文件页数: 20/20页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 1.2A 16SSOP
标准包装: 100
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 10 V
输入电压: 2.65 V ~ 10 V
PWM 型: 电流模式,混合
频率 - 开关: 550kHz
电流 - 输出: 1.2A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
包装: 管件
供应商设备封装: 16-SSOP
产品目录页面: 1334 (CN2011-ZH PDF)
LTC1879
TYPICAL APPLICATIO
5-Cell NiMH to 3.3V/0.25A ZETA Regulator Using All Ceramic Capacitors
R SVIN
10 ?
C SVIN
0.1 μ F
R PG
100k
13
SV IN
15
SYNC/MODE
R SS
1M
C SS
0.1 μ F
14
2
PGOOD
RUN/SS
LTC1879
PV IN
PV IN
PGND
PGND
SWP
8
9
7
10
5
C IN1
10 μ F
?
L1
C IN2
10 μ F
C OUT
47 μ F
V IN
2.8V TO 7.5V
GND
16
PLL_LPF
SWP
SWN
12
6
C C
10 μ F
L1
4.7 μ H
V OUT
3.3V
C C2
220pF
C C1
47pF
R C
4
I TH
SWN
V FB
SGND
11
3
1
R1
1.3M
R2
412k
0.25A
1879 TA03
150k
BOLD LINES INDICATE HIGH CURRENT PATHS
C C : TAIYO YUDEN CERAMIC LMK325BJ106MN
C IN1 , C IN2 : TAIYO YUDEN CERAMIC LMK325BJ106MN
C OUT : TDK CERAMIC C4532X5R0J476M
L1: COILTRONICS CTX5-4
RELATED PARTS
PART NUMBER
LT1616
DESCRIPTION
25V, 500mA (I OUT ), 1.4MHz, High Efficiency
Step-Down DC/DC Converter
COMMENTS
V IN = 3.6V to 25V, V OUT(MIN) = 1.25V, I O = 1.9mA, I SD = <1 μ A, ThinSOT TM
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?
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V IN = 7.4V to 60V, V OUT(MIN) = 1.24V, I O = 3.2mA, I SD = 2.5 μ A, SO-8
V IN = 3V to 25V, V OUT(MIN) = 1.20V, I O = 1mA, I SD = 15 μ A, SO-8, TSSOP16E
V IN = 5.5V to 60V, V OUT(MIN) = 1.20V, I O = 2.5mA, I SD = 25 μ A, TSSOP16/E
V IN = 3V to 25V, V OUT(MIN) = 1.20V, I O = 1mA, I SD = 6 μ A, SO-8, MS8/E
V IN = 2.7V to 6V, V OUT(MIN) = 0.8V, I O = 15 μ A, I SD = <1 μ A, TSSOP-16
V IN = 2.7V to 10V, V OUT(MIN) = 0.8V, I O = 10 μ A, I SD = <1 μ A, MS8
V IN = 3V to 25V, V OUT(MIN) = 1.2V, I O = 2.5 μ A, I SD = <1 μ A, TSSOP-16E
V IN = 2.7V to 6V, V OUT(MIN) = 0.8V, I O = 20 μ A, I SD = <1 μ A, ThinSOT
V IN = 2.5V to 5.5V, V OUT(MIN) = 0.6V, I O = 20 μ A, I SD = <1 μ A, ThinSOT
V IN = 2.5V to 5.5V, V OUT(MIN) = 0.8V, I O = 60 μ A, I SD = <1 μ A, 10-Pin MS
V IN = 2.5V to 5.5V, V OUT(MIN) = 0.8V, I O = 60 μ A, I SD = <1 μ A, TSSOP16E
V IN = 2.5V to 5.5V, V OUT(MIN) = 0.8V, I O = 60 μ A, I SD = <1 μ A, TSSOP16E
Step-Down DC/DC Converter
ThinSOT is a trademark of Linear Technology Corporation.
1879f
(408) 432-1900 q FAX: (408) 434-0507 www.linear.com
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
q
LT/TP 0303 2K ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2001
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