Product Summary

The MAX1709ESE is a 4A, low-noise, high-frequency, step-up DC-DC converter. The MAX1709ESE delivers up to 20W at a fixed (3.3V or 5V) or adjustable (2.5V to 5.5V) output, using an on-chip power MOSFET from a +0.7V to +5V supply. Fixed-frequency PWM operation ensures that the switching noise spectrum is constrained to the 600kHz fundamental and its harmonics, allowing easy postfiltering for noise reduction.

Parametrics

MAX1709ESE absolute maximum ratings: (1)ONA, ONB, OUT, SS/LIM, 3.3/5 to GND: -0.3V to +6.0V; (2)LX to PGND: -0.3V to +6.0V; (3)FB, CLK, REF to GND: -0.3V to (VOUT + 0.3V); (4)PGND to GND: -0.3V to +0.3V; (5)16-Pin Narrow SO (derate 16.5mW/℃ above +70℃): 1.3W; (6)28-Pin TSSOP Exposed Pad (derate 23.8mW/℃ above +70℃): 1.9W; (7)28-Pin TSSOP Exposed Pad Junction-to-Exposed Pad Thermal Resistance: 1.2℃/W; (8)Operating Temperature Range: -40 to +85℃; (9)Junction Temperature: +150℃; (10)Storage Temperature Range: -65 to +150℃; (11)Lead Temperature (soldering, 10s): +300℃.

Features

MAX1709ESE features: (1)On-Chip 10A Power MOSFET; (2)5V, 4A Output from a 3.3V Input; (3)Fixed 3.3V or 5V Output Voltage or Adjustable (2.5V to 5.5V); (4)Input Voltage Range Down to 0.7V; (5)Low Power Consumption 1mW Quiescent Power, 1μA Current in Shutdown Mode; (6)Low-Noise, Constant Frequency Operation(600kHz); (7)Synchronizable Switching Frequency (350kHz to 1000kHz).

Diagrams

MAX1709ESE pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MAX1709ESE
MAX1709ESE
Maxim Integrated Products
DC/DC Switching Converters
Data Sheet
Negotiable 
MAX1709ESE+
MAX1709ESE+
Maxim Integrated Products
DC/DC Switching Converters 4A High f Step-Up DC/DC Converter
Data Sheet
0-1: $6.71
1-25: $4.48
25-50: $3.32
50-100: $3.23
MAX1709ESE+T
MAX1709ESE+T
Maxim Integrated Products
DC/DC Switching Converters 4A High f Step-Up DC/DC Converter
Data Sheet
0-1950: $2.93
1950-2500: $2.93
MAX1709ESE-T
MAX1709ESE-T
Maxim Integrated Products
DC/DC Switching Converters
Data Sheet
Negotiable