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參數(shù)資料
| 型號： | SC1452XIMSTR |
| 廠商： | Semtech Corporation |
| 英文描述： | DUAL 150mA LDO REGULATOR WITH PROGRAMMABLE RESET |
| 中文描述： | 150mA雙路LDO具有可編程復(fù)位 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 116K |
| 代理商： | SC1452XIMSTR |
SC1452
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
PRELIMINARY - August 7, 2000
1
DUAL 150mA LDO REGULATOR WITH
PROGRAMMABLE RESET
TYPICAL APPLICATION
FEATURES
=
Up to 150mA per regulator output
=
Low quiescent current
=
Low dropout voltage
=
Wide selection of output voltages
=
Stable operation with ceramic caps
=
Tight load and line regulation
=
Current and thermal limiting
=
Reverse input polarity protection
=
<1uA off-mode current
=
Logic controlled electronic enable
=
Programmable reset
=
Full industrial temperature range
APPLICATIONS
=
Cellular telephones
=
Palmtop/Laptop computers
=
Battery-powered equipment
=
Bar code scanners
=
SMPS post regulator/dc to dc modules
=
High efficiency linear power supplies
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
Part Numbers
SC1452XIMSTR
(1)(2)
Package
MSOP-10
ORDERING INFORMATION
Notes:
(1) Where X denotes voltage options - see table on
page 5.
(2) Only available in tape and reel packaging. A reel
contains 2500 devices.
DESCRIPTION
The SC1452 is a state of the art device intended to
provide maximum performance and flexibility in battery
operated systems. It has been designed specifically to
fully support a single Li-Ion battery and its external
charger voltages.
The SC1452 contains two independently enabled, ultra
low dropout voltage regulators (ULDOs). It operates
from an input voltage range of 2.5V to 6.5V, and a wide
variety of output voltage options are available which are
designed to provide an initial tolerance of ±1% and
±2% over temperature.
Each regulator has an associated active-low reset sig-
nal which is asserted when the voltage output declines
below the preset threshold. Once the output recovers,
the reset continues to be asserted (delayed) for a
predetermined time, 50ms for reset A and 150ms for
reset B. In the case of regulator B, the delay time may
be reduced by the addition of an external capacitor.
The SC1452 has a bypass pin to enable the user to
capacitively decouple the bandgap reference for very
low output noise (down to 50μVrms).
The devices utilize CMOS technology to achieve very
low operating currents (typically 150μA with both out-
puts supplying 150mA). The dropout voltage is typically
165mV at 150mA, helping to prolong battery life. In
addition, the devices are guaranteed to provide 400mA
of peak current for applications which require high initial
inrush current. They have been designed to be used
with low ESR ceramic capacitors to save cost and PCB
area.
The SC1452 comes in the low profile 10-lead MSOP
package.
3.3V IN
ENABLE OUTPUT A
ENABLE OUTPUT B
RESET B
RESET A
2.5V OUT
3.3V OUT
U1
SC1452JIMS
1
2
3
4
5
6
7
8
9
10
OUTA
OUTB
GND
RSTA
RSTB
DLYB
ENB
BYP
ENA
IN
COUTA
1uF
CBYP
10nF
CDLYB
10nF
CIN
1uF
COUTB
1uF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC1452 | DUAL 150mA LDO REGULATOR WITH PROGRAMMABLE RESET |
| SC1453-1.5ISKTR | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1453-1.8ISKTR | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1453-2.5ISKTR | RES POWER .024 OHM 1W 5% SMT |
| SC1453-2.7ISKTR | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC1452XIMSTRT | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Dual 150mA LDO Regulator with Programmable Reset |
| SC1453 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:150mA Ultra Low Dropout Regulator with Low Noise Bypass |
| SC1453_06 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:150mA Ultra Low Dropout Regulator with Low Noise Bypass |
| SC1453_08 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:150mA Ultra Low Dropout Regulator with Low Noise Bypass |
| SC1453-1.5ISKTR | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:150mA Ultra Low Dropout Regulator with Low Noise Bypass |
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