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參數(shù)資料
| 型號： | CS8371 |
| 廠商： | ZF Electronics Corporation |
| 英文描述： | 8V/1A, 5V/250mA Dual Regulator with Independent Output Enables and NoCap |
| 中文描述： | 8V/1A，5V/250mA穩(wěn)壓器，帶有獨立的雙輸出啟用和NoCap |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 174K |
| 代理商： | CS8371 |
6
With separate control of each output channel, the CS8371
is ideal for applications where each load must be switched
independently. In an automotive radio, the 8V output
drives the displays and tape drive motors while the 5V
output supplies the Tuner IC and memory.
Stability Considerations/NoCapa
Normally a low dropout or quasi-low dropout regulator
(or any type requiring a slow lateral PNP in the control
loop) necessitates a large external compensation capacitor
at the output of the IC. The external capacitor is also used
to curtail overshoot, determine startup delay time and
load transient response.
Traditional LDO regulators typically have low unity gain
bandwidth, display overshoot and poor ripple rejection.
Compensation is also an issue because the high frequency
load capacitor value, ESR (Equivalent Series Resistance)
and board layout parasitics all can create oscillations if not
properly accounted for.
NoCapa is a Cherry Semiconductor exclusive output
stage which internally compensates the LDO regulator
over temperature, load and line variations without the
need for an expensive external capacitor. It incorporates
high gain (>80dB) and large unity gain bandwidth
(>100kHz) while maintaining many of the characteristics
of a single-pole amplifier (large phase margin and no
overshoot).
NoCapa is ideally suited for slow switching or steady
loads. If the load displays large transient current require-
ments, such as with high frequency microprocessors, an
output storage capacitor may be needed. Some large
capacitor and small capacitor ESR values at the output
may cause small signal oscillations at the output. This will
depend on the load conditions. With these types of loads,
a traditional output stage may be better suited for proper
operation.
Output 1 employs NoCapa. Refer to the plots in the
Typical Performance Characteristics section for appropri-
ate output capacitor selections for stability if an external
capacitor is required by the switching characteristics of the
load. Output 2 has a Darlington NPN-type output struc-
ture and is inherently stable with any type of capacitive
load or no capacitor at all.
Applications Circuit
Application Notes
CS8371
C
1
*
0.1
m
F
ENABLE
1
V
IN
V
OUT1
Gnd
VOUT2
8V
5V
Control
DISPLAY
Tuner IC
ENABLE
2
C
*C
1
is required if regulator is far from power source filter.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS8371/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8V/1A， 5V/250mA Dual Regulator withIndependent Output Enables and NoCap? |
| CS8371ET7 | 功能描述:線性穩(wěn)壓器 - 標準 8V/1A 5V/250mA Dual RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| CS8371ET7G | 功能描述:線性穩(wěn)壓器 - 標準 8V/1A 5V/250mA Dual Micropower w/ENABLE RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| CS8371ETHA7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| CS8371ETVA7 | 功能描述:線性穩(wěn)壓器 - 標準 8V/1A 5V/250mA Dual RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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