AAT2510IWP-IH-T1 AnalogicTech, AAT2510IWP-IH-T1 Datasheet - Page 8

• Manufacturer Part Number: AAT2510IWP-IH-T1
• Description: Dual 400mA, 1MHz Step-Down DC-DC Converter
• Manufacturer: AnalogicTech

Functional Block Diagram
Note: Internal resistor divider included for ≥1.2V versions. For low voltage versions, the feedback pin is tied directly to the error amplifier input.
Operation
Device Summary
The AAT2510 is a constant frequency peak current
mode PWM converter with internal compensation.
Each channel has independent input, enable, feed-
back, and ground pins with non-synchronized
1MHz clocks.
8
SGND1
EN2
FB2
EN1
FB1
Note
See
Note
See
Reference
SGND2
Voltage
Reference
Voltage
Dual 400mA, 1MHz Step-Down DC-DC Converter
Amp.
Amp.
Err.
Err.
Control
Logic
Control
Logic
Comp.
Comp.
Both converters are designed to operate with an
input voltage range of 2.7V to 5.5V. The output
voltage ranges from 0.6V to the input voltage for
the internally fixed version and up to 2.5V for the
externally adjustable version. The 0.6V fixed model
shown in Figure 1 is also the adjustable version
and is externally programmable with a resistive
divider as shown in Figure 2. The converter MOS-
FET power stage is sized for 400mA load capabili-
ty with up to 96% efficiency. Light load efficiency
exceeds 80% at a 500µA load.
Logic
Logic
DH
DH
DL
DL
VIN1
AAT2510
LX1
GND1
VIN2
LX2
GND2
2510.2005.08.1.5