IC Phoenix logo

Home ›  M  › M26 > MAX1557ETB

MAX1557ETB from MAX,MAXIM - Dallas Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MAX1557ETB

Manufacturer: MAX

16 mA IQ, 1.2 A PWM step-down DC-DC converter

Partnumber Manufacturer Quantity Availability
MAX1557ETB MAX 782 In Stock

Description and Introduction

16 mA IQ, 1.2 A PWM step-down DC-DC converter The MAX1557ETB is a dual USB/AC-adapter battery charger IC manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1557ETB  
- **Package:** 10-pin TDFN (3mm x 3mm)  
- **Input Voltage Range:** 4.5V to 7V (USB) / 4.5V to 12V (AC adapter)  
- **Charge Current:** Programmable up to 1.5A  
- **Battery Voltage:** 4.2V (Li+) or 4.1V (Li+) selectable  
- **Charge Termination:** 10% of programmed current  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions**  
- The MAX1557ETB is a dual-input linear charger for single-cell Li+ batteries.  
- It automatically selects between USB and AC-adapter power sources.  
- Includes thermal regulation to prevent overheating.  
- Supports both USB (500mA max) and AC-adapter (1.5A max) charging modes.  

### **Features**  
- **Dual-Input Charging:** Supports USB and AC-adapter inputs.  
- **Automatic Power Source Selection:** Prioritizes AC adapter when both inputs are present.  
- **Programmable Charge Current:** Adjustable via external resistor.  
- **Thermal Regulation:** Reduces charge current if temperature exceeds safe limits.  
- **Charge Status Outputs:** Open-drain outputs indicate charging and power-good status.  
- **No External MOSFET or Blocking Diode Required:** Simplifies design.  
- **Low Battery Leakage:** <2µA when power is removed.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

16 mA IQ, 1.2 A PWM step-down DC-DC converter

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips