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MAX4364, MAX4365
1.4W and 1W, Ultra-Small, Audio Power Amplifiers with Shutdown
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Status
| Part Number |
Status |
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MAX4364
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Active: In Production. |
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MAX4365
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This product is No Longer Available. See Ordering Information for recommended replacements. |
Description
The MAX4364/MAX4365 are bridged audio power amplifiers intended for portable audio devices with internal speakers. The MAX4364 is capable of delivering 1.4W from a single 5V supply and 500mW from a single 3V supply into an 8Ω load. The MAX4365 is capable of delivering 1W from a single 5V supply and 450mW from a single 3V supply into an 8Ω load. The MAX4364/MAX4365 feature 0.04% THD+N at 1kHz, 68dB PSRR at 217Hz, and only 10nA of supply current in shutdown mode.
The MAX4364/MAX4365 bridged outputs eliminate the need for output-coupling capacitors, minimizing external component count. The MAX4364/MAX4365 also include internal DC bias generation, clickless operation, short-circuit and thermal-overload protection. Both devices are unity-gain stable, with the gain set by two external resistors.
The MAX4364 is available in a small 8-pin SO package. The MAX4365 is available in tiny 8-pin TDFN (3mm x 3mm x 0.8mm) and µMAX® packages.
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Data Sheet
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An evaluation kit is available: MAX4364EVKIT
Key Features
- 1.4W into 8Ω Load (MAX4364)
- 1W into 8Ω Load (MAX4365)
- 0.04% THD+N at 1kHz
- 68dB PSRR at 217Hz
- 2.7V to 5.5V Single-Supply Operation
- 5mA Supply Current
- Low-Power, 10nA Shutdown Mode
- Pin Compatible with the LM4861/LM4862/LM4864 (MAX4364)
- Clickless Power-Up and Shutdown
- Thermal-Overload and Short-Circuit Protection
- Available in TDFN, µMAX, and SO Packages
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Applications/Uses
- Cell Phones
- General-Purpose Audio
- PDAs
- Two-Way Radios
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Key Specifications:
| Speaker Amplifiers |
| Part Number |
Class |
Spkr. Amp. VCC
(V) |
Spkr. Amp. VCC
(V) |
Spkr. Amp. ICC
(mA) |
POUT into 8Ω @ 1% THD+N
(W) |
POUT into 8Ω @ 10% THD+N
(W) |
Spkr. Amp. Half Pwr. THD+N
(%) |
PSRR
(dB) |
Spkr. Amp. Ext. Gain |
Channels |
Budgetary Price |
| min |
max |
typ |
min |
min |
min |
See Notes |
| MAX4364 |
AB |
2.7 |
5.5 |
7 |
1.4 |
2 |
0.04 |
75 |
Yes |
1 |
$0.45 @1k |
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See All Speaker Amplifiers (44)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Pin Configuration
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-2387
Rev 4;
2011-07-21
This page last modified: 2011-07-21
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