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參數(shù)資料
| 型號(hào)： | 935269674115 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器 |
| 英文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO5 |
| 封裝： | PLASTIC, MO-178, SOT-25, SOT-23, SO-5 |
| 文件頁(yè)數(shù)： | 2/6頁(yè) |
| 文件大?。?/td> | 107K |
| 代理商： | 935269674115 |
Philips Semiconductors
Product data
LP2985-XX
Micropower 150 mA low noise,
low dropout linear regulator
2
2001 Oct 03
853–2291 27197
GENERAL DESCRIPTION
The LP2985-XX is a 150 mA, fixed output voltage regulator designed
to provide very low dropout and low noise in battery powered and
portable applications. The output voltage is preset to 1.8, 2.8, 3.0,
3.3, 3.6, or 5.0 V.
Designed with an optimized PNP process, the LP2985-XX achieves
unequalled performance in all specifications critical to
battery-powered designs such as low supply-current, low dropout
voltage, low power consumption, small size, fast dynamic response
to line and load, precision output, etc. This regulator consists of an
internal voltage reference, an error amplifier, a driver with current
limiter and a thermal shut-down mechanism.
The LP2985-XX is housed in a SOT23-5 5-lead package.
FEATURES
Very low consumption current: 85 mA typ. (when not loaded),
0.1 mA max. (when off)
Very low dropout voltage: 100 mV typ. (I
OUT = 50 mA)
High precision output voltage: ±2%
Output current capacity: 150 mA
Low noise: 30 mV
RMS @ 20 Hz to 80 kHz (C
n= 10 nF)
Good line regulation: 0.01%/V typ.
Good load regulation: 30 mV typ. (I
OUT = 1 to 150 mA)
Low temperature drift co-efficient to V
OUT: ±100 ppm/°C
Built-in current limit and thermal shut-down
Wide operating temperature range: –30 to +85 °C
Preset output voltages: 1.8, 2.8, 3.0, 3.3, 3.6, or 5.0 V
APPLICATIONS
Cellular phones, cordless phones, and 2-way radios
Electronic notebooks, PDAs and palmtop computers
Cameras, VCRs and camcorders
PCMCIA cards
Modems
Battery-powered or hand-held instruments
SIMPLIFIED DEVICE DIAGRAM
VIN
NOISE
VOUT
GND
1
5
2
4
3
ON/OFF
REFERENCE
BIAS
DRIVER
THERMAL
SHUTDOWN
CURRENT
LIMIT
LP2985-XX
SL01545
Figure 1. Simplified device diagram.
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