AAT1149A Datasheet, PDF (15/17 Pages) Advanced Analogic Technologies – 2.2MHz Fast Transient 400mA Step-Down Converter

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PRODUCT DATASHEET
AAT1149A
2.2MHz Fast Transient 400mA Step-Down Converter
Manufacturer
Taiyo Yuden
Sumida
Murata
Coiltronics
Part Number/Type
BRL2012
CBC2518
Wire Wound Chip
CDRH2D09
Shielded
LQH2MCN4R7M02
Unshielded
SD3118
Shielded
Rated
Inductance (μH) Current (mA)
2.2
550
2.2
890
2.5
440
2.2
425
2.2
510
Table 1: Typical Surface Mount Inductors.
DCR (Ω)
250
130
150
480
116
Size (mm)
LxWxH
0805
(H_MAX = 1mm)
2.5x1.8x1.8
3.2x3.2x1.0
2.0x1.6x0.95
3.15x3.15x1.2
Manufacturer
Murata
Murata
Murata
Part Number
GRM219R61A475KE19
GRM21BR60J106KE19
GRM185R60J475M
Value
4.7μF
10μF
4.7μF
Voltage
10V
6.3V
6.3V
Table 2: Surface Mount Capacitors.
Temp. Co.
X5R
X5R
X58
Case
0805
0805
0603
1. For reduced quiescent current, R2 = 221kΩ.
1149A.2008.08.1.1
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