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參數(shù)資料
| 型號： | 935272488115 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 固定正電壓單路輸出LDO穩(wěn)壓器 |
| 英文描述： | 3.1 V FIXED POSITIVE LDO REGULATOR, 0.12 V DROPOUT, PDSO5 |
| 封裝： | 1.60 MM, PLASTIC, SOT-680-1, SO-5 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大小： | 235K |
| 代理商： | 935272488115 |
Philips Semiconductors
Product data
SA57000-XX
CapFREE
150 mA, low-noise, low dropout regulator
with thermal protection
2
2003 Apr 01
GENERAL DESCRIPTION
The CapFREE
SA57000 is the first in a new family of unique low
dropout regulators. It needs no external capacitors, offers a low
output noise voltage of 30
VRMS, and an ultra-low dropout voltage
of 55 mV @ 50 mA output current. To accommodate high density
layouts, it is packaged in the small footprint 5 leaded SOT23-5 (SO5)
and a 5-bump Wafer Level Chip-Scale package (WL-CSP5). It is ideal
for all portable and cellular phone applications.
Additional features include power and thermal shutdown, output
current limitation, power OK status, thermal warning, and external
logic-controlled on-off via the PWRON pin.
WL-CSP5
SOT23-55
FEATURES
CapFREE: No output capacitor needed, stable for all capacitive
loads, regardless of ESR
5 leaded SOT23-5 (SO5) and Wafer Level Chip-Scale (WL-CSP5)
packages
Low 30 V
RMS noise without noise bypass capacitor
Preset output voltages to 2.5 V, 2.8 V, 2.9 V, 3.0 V, 3.1 V, 3.3 V
and 3.6 V; other voltages available upon request. 2% output
voltage accuracy
150 mA maximum output current with current limitation
Typical dropout voltage 55 mV @ 50 mA output current
85 A typical ground current
Shut-down (standby) current < 1 A
Thermal-overload and short-circuit protection
PWROK pin: both power status and thermal warning indicator
PWRON pin offers logic-controlled shutdown
Maximum line regulation: 0.1%/V
Maximum load regulation: 0.02%/mA.
APPLICATIONS
Cordless and mobile phones
Industrial and medical equipment
Other battery-powered equipment.
SIMPLIFIED SYSTEM DIAGRAM
SA00557
LOW-PASS
FILTER
OUTPUT
AMP.
LOGIC
CONTROL
BIAS
NETWORK
PWROK
VOUT
PWRON
TEMPERATURE
SENSOR
BAND
GAP
SA57000
3
PWRON
GND
VIN
OVER 144
°C (POWER/THERMAL SHUTDOWN)
OVER 127
°C (POWER/THERMAL WARNING)
2
1
5
4
Figure 1. Simplified system diagram.
CapFREE is a trademark of Philips Electronics North America Corporation.
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