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PDF LR3988 Data sheet ( Hoja de datos )
| Número de pieza | LR3988 | |
| Descripción | Micropower 150mA Ultra Low-Dropout CMOS Voltage Regulator | |
| Fabricantes | LRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LR3988 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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LESHAN RADIO COMPANY, LTD
Micropower 150mA Ultra Low-Dropout
CMOS Voltage Regulator with Power Good
LR3988
General Description
The LR3988 is a 150mA low dropout regulator designed specially to meet requirements of Portable battery applications.
The LR3988 is designed to work with space saving, small 1µFceramic capacitor. The LR3988 features an Error Flag output
that indicates a faulty output condition. The LR3988's performance is optimized for battery powered systems to deliver low noise,
extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further
prolonging the battery life.
Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is
maintained down to lower input voltage levels common to battery operated circuits.
The device is ideal for mobile phone and similar battery powered wireless applications. It provides up to 150 mA, from a 2.0V
to 6.5V input, consuming less than 1µA in disable mode and has fast turn-on time less than 220µs.
The LR3988 is available SOT23(-3 -5) package and SC70(-3 -5) package. Performance is specified for -40 to +125
temperature range and is available in 1.5V~6.0V output voltages.
Key Specifications
2.0Vto 6.5 V input range
150mA guaranteed output
35dB PSRR at 10kHz
≤1µA quiescent current when shut down
Fast Turn-On time: 150 µs (type.)
120 mV type dropout with 150mA load
40 to +125 junction temperature range for operation
1.5V~6.0V outputs
Features
SOT23-3 SOT23-5 package
SC70 SC70-5(SC88A) package
Power-good flag output
Logic controlled enable
Stable with ceramic and high quality tantalum capacitors
Fast turn-on
Thermal shutdown and short-circuit current limit
Applications
CDMA cellular handsets
Wideband CDMA cellular handsets
GSM cellular handsets
Portable information appliances
Tiny 3.3V± 5% to 2.5V, 150mA converter
Typical Application Circuit
May 2007/Ver 1
5 Pin LDO
www.lrc.cn
LR3988-1/9
1 page  
LESHAN RADIO COMPANY, LTD
Note 1: The minimum VIN is dependant on the device output option.
For Vout(NOM) < 2. 5V, VIN(MIN) will equal 2.5V. For Vout(NOM) >= 2. 5V, VIN(MIN) will equal Vout(NOM) + 200mV.
FIGURE 1. Line Transient response Input Perturbation
FIGURE 2. PSRR Input Perturbation
Ordering Information
Output
Voltage (V)
1.5
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
4.2
5.0
Grade
STD
STD
STD
STD
STD
STD
STD
STD
STD
STD
STD
STD
SOT23-5 Package
LR3988 Supplied as 3000
Units, Tape and Reel
LR3988 Supplied as
10000Units, Tape and Reel
LR3988DW1T1G-1.5
LR3988DW1T3G-1.5
LR3988DW1T1G-2.5
LR3988DW1T3G-2.5
LR3988DW1T1G-2.6
LR3988DW1T3G-2.6
LR3988DW1T1G-2.7
LR3988DW1T3G-2.7
LR3988DW1T1G-2.8
LR3988DW1T3G-2.8
LR3988DW1T1G-2.9
LR3988DW1T3G-2.9
LR3988DW1T1G-3.0
LR3988DW1T3G-3.0
LR3988DW1T1G-3.1
LR3988DW1T3G-3.1
LR3988DW1T1G-3.2
LR3988DW1T3G-3.2
LR3988DW1T1G-3.3
LR3988DW1T3G-3.3
LR3988DW1T1G-4.2
LR3988DW1T3G-4.2
LR3988DW1T1G-5.0
LR3988DW1T3G-5.0
Package
Marking
May 2007/Ver 1
www.lrc.cn
LR3988-5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LR3988.PDF ] | |
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