LM4890IBP National Semiconductor, LM4890IBP Datasheet - Page 12

• Manufacturer Part Number: LM4890IBP
• Description: IC AMP AUDIO PWR 1W MONO 8USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4890IBP

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm
• Voltage - Supply: 2.2 V ~ 5.5 V
• Features: Depop, Shutdown, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 8-MicroSMD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LM4890IBPTR

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Typical Performance Characteristics
V
LM4890 vs LM4877 Power Supply Rejection Ratio
DD
Next Trace Down = 2µf, Bottom Trace = 4.7µf
Top Trace = No Cap, Next Trace Down = 1µf
= 5V, Input Grounded = 10Ω, Output Load = 8Ω
Power Supply Rejection Ration vs
Output Load = 8Ω, 200mV Ripple
V
DD
PSRR Distribution V
= 5V, Input Grounded = 10Ω
LM4890 = Bottom Trace
Bypass Capacitor Size
LM4877 = Top Trace
-30, +25, and +80˚C
217Hz, 200mvp-p,
DD
= 5V
200192A7
20019288
200192B4
12
(Continued)
V
LM4890 vs LM4877 Power Supply Rejection Ratio
DD
Next Trace Down = 2µf, Bottom Trace = 4.7µf
Top Trace = No Cap, Next Trace Down = 1µf
= 3V, Input Grounded = 10Ω, Output Load = 8Ω
Power Supply Rejection Ration vs
Output Load = 8Ω, 200mV Ripple
V
DD
PSRR Distribution V
= 3V, Input Grounded = 10Ω
LM4890 = Bottom Trace
Bypass Capacitor Size
LM4877 = Top Trace
-30, +25, and +80˚C
217Hz, 200mvp-p,
DD
= 3V
200192A8
20019289
200192B5