参数资料
型号: TPS62321YZDT
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 0.89 A SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, BGA8
封装: GREEN, DSBGA-8
文件页数: 16/37页
文件大小: 1401K
代理商: TPS62321YZDT
www.ti.com
APPLICATION EXAMPLES
VIN
VOUT
TPS62303YZD
L1
ADJ
C
IN
VOUT
1.8 V / 500 mA
2.7 V 6 V
C
1
V IN
SW
EN
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
VOUT
EN
MODE/SYNC
FB
A2
B2
C1
B1
D1
C2
D2
GND
A1
1G08
10
F
10
F
10
F
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
CIN, C1, C2, = X5R/X7R Ceramic Capacitor
Ch1: SW (1.8-V Output), Ch2: IL1
Ch3: SW (1.2-V Output), Ch4: IL2
Ch1
Ch3
Ch2
Ch4
VIN
VOUT
TPS62300YZD
L1
ADJ
1.8 V / 500 mA
C
1
SW
EN
MODE/SYNC
FB
A2
B2
C1
D1
B1
C2
D2
GND
A1
Fast StartUp LDO
VIN
VOUT
GND
EN
10
F
1
H
10
F
C
IN
2.7 V . . 6 V
V IN
22 nF
2.2 M
10 k
List of Components:
L1 = Taiyo Yuden LQ CB2016
CIN, C1 = X5R/X7R Ceramic Capacitor
Ch1: VO
Ch3: Inductor Current: IL1
Ch3: EN External Control Signal
VI = 2.8 V,
RL = 10 W
VO
EN
IL1
VOUT(LDO) = 0.98 x VOUT(NOM)
VOUT
SLVS528E – JULY 2004 – REVISED NOVEMBER 2007
Figure 37. Dual, Out-of-Phase, 3-MHz, 500-mA Step-Down Regulator
Features Less Than 50-mm2 Total Solution Size
Figure 38. Speed-Up Circuitry for Fast Turnon Time
Copyright 2004–2007, Texas Instruments Incorporated
23
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