AATIAN44 Datasheet, PDF (1/4 Pages) SiGe Semiconductor, Inc. – Low Voltage 2MHz Step-Up DC/DC Converter

EVALUATION BOARD DATASHEET
EV-147
AAT1299 EVAL: Low Voltage 2MHz Step-Up DC/DC Converter
Introduction
The AAT1299 evaluation board provides a platform for the testing and evaluation of the AAT1299 low voltage 2MHz
step-up regulator. The evaluation board demonstrates suggested size and placement of external components to main-
tain output voltage regulation for up to 250mA of output current. The external components were selected to suit por-
table applications where the layout has been optimized to achieve high efficiency with the SC70JW-8 package. The
design operates across an input voltage range of 1.0V to V_OUT. The AAT1299 evaluation board provides a 3.3V output
at 250mA maximum output current for a dual AA cell input. This document provides details on the operation and test-
ing of the AAT1299 evaluation board. For further information consult the AAT1299 product datasheet.
Operating Specification
Specification
Input Voltage
Output Voltage Accuracy
Line Regulation [ΔV_OUT /
V_OUT / ΔV_IN]
Load Regulation
[ΔV_OUT / V_OUT]
Description/Conditions
V_IN = 1V to 2.5V, PWM Mode; T_A = -40°C to +85°C
1.0V ≤ V_IN ≤ 2.5V
0mA ≤ I_OUT ≤ 100mA
Min
1.0
V_OUT – 0.1V
0.2
Typ
Max
V_OUT
V_OUT + 0.1V
%/V
Units
V
1.5
%
Table 1: AAT1299 Evaluation Board Operating Specification.
Schematic
V_IN
C2
[C_IN]
L1
EN
U1 AAT1299
4
LX
1
VCC
3
VIN
5
OUT
V_OUT
2 _EN
C1
[C_OUT]
6,7,8
GND
Figure 1: AAT1299 Evaluation Board Schematic.
EV-147.2007.11.1.0
www.analogictech.com
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