参数资料
型号: LTC1262IS8#PBF
厂商: Linear Technology
文件页数: 1/8页
文件大小: 0K
描述: IC DC/DC CONV FLASHMEM 12V 8SOIC
标准包装: 100
应用: 转换器,编程电源
输入电压: 4.75 V ~ 5.5 V
输出数: 1
输出电压: 12V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
产品目录页面: 1339 (CN2011-ZH PDF)
LTC1262
12V, 30mA Flash Memory
Programming Supply
FEATURE S
D ESCRIPTIO
s
s
s
s
s
s
s
Regulated 12V ± 5% Output Voltage
No Inductors
Supply Voltage Range: 4.75V to 5.5V
Guaranteed 30mA Output
Low Power: I CC = 500 μ A
I CC in Shutdown: 0.5 μ A
8-Pin PDIP or SO-8 Package
The LTC ? 1262 is a regulated 12V, 30mA output DC/DC
converter. It is designed to provide the 12V ± 5% output
necessary to program byte-wide flash memories. The
output will provide up to 30mA from input voltages as low
as 4.75V without using any inductors. Only four external
capacitors are required to complete an extremely small
surface mountable circuit.
12V Flash Memory Programming Supplies
Compact 12V Op Amp Supplies
APPLICATI      S
s
s
The TTL compatible shutdown pin can be directly con-
nected to a microprocessor and reduces the supply cur-
rent to less than 0.5 μ A. The LTC1262 offers improved
shutdown current performance and requires fewer exter-
s
Battery-Powered Systems
nal components than competing solutions.
The LTC1262 is available in an 8-pin PDIP or SO-8
package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL A PPLICATI
In/Out of Shutdown
1
C1 –
SHDN
8
FROM MPU
0.22 μ F
0.22 μ F
2
3
4
C1 +
C2 –
C2 +
LTC1262
GND
V OUT
V CC
7
6
5
4.7 μ F
V CC
4.7 μ F
FLASH
MEMORY
VPP
V CC
LTC1262 ? TA01
SHDN 5V
5V/DIV 0V
12V
V OUT
5V/DIV 5V
4.75V TO 5.5V
0V
1ms/DIV
1262 TA01a
1
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