Product Descriptions
The MAX750A/MAX758A are adjustable-output, CMOS, step-down, DC-DC switching regulators. The MAX758A accepts inputs from 4V to 16V and delivers 750mA, while the MAX750A accepts inputs from 4V to 11V and delivers 450mA. Typical efficiencies are 85% to 90 percent. Typical quiescent current is 1.7mA, or only 6µA in shutdown mode. The output does not exhibit any ripple at subharmonics of the switching frequency over its specified range.
Pulse-width-modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±4.5 percent plus feedback-resistor tolerance over line, load, and temperature variations. Fixed-frequency switching and absence of subharmonic ripple allows easy filtering of output ripple and noise, as well as the use of small external components. These regulators require only a single inductor value to work in most applications, so no inductor design is necessary.
Product Features
♦ Up to 750mA Load Currents
♦ 160kHz High-Frequency, Current-Mode PWM
♦ 85 percent to 96 percent Efficiencies
♦ 33µH or 100µH Pre-Selected Inductor Value, No Component Design Required
♦ 1.7mA Quiescent Supply Current
♦ 6µA Shutdown Supply Current
♦ Adjustable Output Voltage
♦ Overcurrent, Soft-Start, and Undervoltage Lockout Protection
♦ Cycle-by-Cycle Current Limiting
♦ 8-Pin DIP/SO Packages (MAX750A)
Product Applications
Cellular Phones & Radios
Portable Communications Equipment
Portable Instruments
Computer Peripherals
Product Specification
| Attribute | Attribute value |
| ANSM-Part# | ANSM-MAX758ACPA |
| Category | Integrated Circuits (ICs) |
| Power Management (PMIC) | |
| Voltage Regulators - DC DC Switching Regulators | |
| Mfr | - |
| Series | - |
| Packaging | Tube |
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 1.22V |
| Voltage - Output (Max) | 16V |
| Current - Output | 750mA |
| Frequency - Switching | 160kHz |
| Synchronous Rectifier | No |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-PDIP |
| Base Product Number | MAX758 |
Product Photos
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