Datasheet

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APPLICATION EXAMPLES
VIN VOUT
TPS62303YZD
L
1
ADJ
C
IN
V
OUT
1.8 V / 500 mA
2.7 V − 6 V
C
1
V
IN
SWEN
MODE/SYNC
FB
A2
B2
C1
D1
B1
C2
D2
GND
A1
VIN SW
TPS62304YZD
L
2
ADJ
V
OUT
1.2 V / 500 mA
C
2
VOUTEN
MODE/SYNC
FB
A2
B2
C1
B1
D1
C2
D2
GND
A1
1G08
10 µF
10 µF
10 µF
Low: None Synchronized Operation
PFM/PWM Automatic Switch
High: Synchronized Operation
Forced 3 MHz Fixed Frequency Operation
List of Components:
L1, L2 = Taiyo Yuden LQ CB2016
C
IN
, C1, C2, = X5R/X7R Ceramic Capacitor
Ch1: SW (1.8-V Output), Ch2: I
L1
Ch3: SW (1.2-V Output), Ch4: I
L2
Ch1
Ch3
Ch2
Ch4
VIN VOUT
TPS62300YZD
L1
ADJ
1.8 V / 500 mA
C
1
SWEN
MODE/SYNC
FB
A2
B2
C1
D1
B1
C2
D2
GND
A1
Fast Start−Up LDO
VIN
VOUT
GND
ENEN
10 µF
1 µH
10 µF
C
IN
2.7 V . . 6 V
V
IN
22 nF
2.2 MΩ
10 kΩ
List of Components:
L1 = Taiyo Yuden LQ CB2016
C
IN
, C1 = X5R/X7R Ceramic Capacitor
Ch1: V
O
Ch3: Inductor Current: I
L1
Ch3: EN − External Control Signal
V
I
= 2.8 V,
R
L
= 10 W
V
O
EN
I
L1
V
OUT(LDO)
= 0.98 x V
OUT(NOM)
V
OUT
TPS62300, TPS62301, TPS62302
TPS62303, TPS62304, TPS62305,
TPS62311, TPS62313, TPS62315, TPS62320, TPS62321
SLVS528E – JULY 2004 – REVISED NOVEMBER 2007
Figure 37. Dual, Out-of-Phase, 3-MHz, 500-mA Step-Down Regulator
Features Less Than 50-mm
2
Total Solution Size
Figure 38. Speed-Up Circuitry for Fast Turnon Time
Copyright © 2004 – 2007, Texas Instruments Incorporated Submit Documentation Feedback 23
Product Folder Link(s): TPS62300, TPS62301, TPS62302 TPS62303, TPS62304, TPS62305, TPS62311, TPS62313,
TPS62315, TPS62320, TPS62321