參數資料
型號: LP3883ET-1.2/NOPB
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 固定正電壓單路輸出LDO穩(wěn)壓器
英文描述: 1.216 V FIXED POSITIVE LDO REGULATOR, 0.42 V DROPOUT, PZFM5
封裝: TO-220, 5 PIN
文件頁數: 9/14頁
文件大?。?/td> 819K
代理商: LP3883ET-1.2/NOPB
Electrical Characteristics Limits in standard typeface are for T
J = 25C, and limits in boldface type apply
over the full operating temperature range. Unless otherwise specified: V
IN =VO(NOM) + 1V, VBIAS = 4.5V, IL = 10 mA, CIN =
COUT = 4.7 F, VS/D =VBIAS. (Continued)
Symbol
Parameter
Conditions
Typical
MIN
MAX
Units
AC Parameters
PSRR (V
IN)
Ripple Rejection for V
IN Input
Voltage
V
IN =VOUT +1V, f = 120 Hz
80
dB
V
IN =VOUT + 1V, f = 1 kHz
65
PSRR
(V
BIAS)
Ripple Rejection for V
BIAS
Voltage
V
BIAS =VOUT + 3V, f = 120 Hz
70
V
BIAS =VOUT + 3V, f = 1 kHz
65
Output Noise Density
f = 120 Hz
1
V/rootHz
e
n
Output Noise Voltage
V
OUT = 1.8V
BW = 10 Hz 100 kHz
150
V (rms)
BW = 300 Hz 300 kHz
90
Note 1: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Operating ratings indicate conditions for which the device
is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications, see Electrical Characteristics. Specifications do not
apply when operating the device outside of its rated operating conditions.
Note 2: At elevated temperatures, device power dissipation must be derated based on package thermal resistance and heatsink thermal values.
θJ-A for TO-220
devices is 65C/W if no heatsink is used. If the TO-220 device is attached to a heatsink, a
θJ-S value of 4C/W can be assumed. θJ-A for TO-263 devices is
approximately 40C/W if soldered down to a copper plane which is at least 1.5 square inches in area. If power dissipation causes the junction temperature to exceed
specified limits, the device will go into thermal shutdown.
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5k resistor into each pin.
Note 4: Typical numbers represent the most likely parametric norm for 25C operation.
Note 5: Limits are guaranteed through testing, statistical correlation, or design.
Note 6: If used in a dual-supply system where the regulator load is returned to a negative supply, the output pin must be diode clamped to ground.
Note 7: Output voltage line regulation is defined as the change in output voltage from nominal value resulting from a change in input voltage.
Note 8: Output voltage load regulation is defined as the change in output voltage from nominal value as the load current increases from no load to full load.
Note 9: Dropout voltage is defined as the minimum input to output differential required to maintain the output with 2% of nominal value.
Note 10: The machine model is a 220 pF capacitor discharged directly into each pin. The machine model ESD rating of pin 5 is 100V.
LP3883
www.national.com
4
相關PDF資料
PDF描述
LP3883ET-1.5/NOPB 1.5 V FIXED POSITIVE LDO REGULATOR, 0.42 V DROPOUT, PZFM5
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