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参数资料
| 型号： | TPS65530RSLRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3.3 A SWITCHING REGULATOR, 1650 kHz SWITCHING FREQ-MAX, PQCC48 |
| 封装： | 6 X 6 MM, 0.40 MM PITCH, GREEN, PLASTIC, QFN-48 |
| 文件页数： | 6/31页 |
| 文件大小： | 931K |
| 代理商： | TPS65530RSLRG4 |
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CH1/3 Recommended Parts
CH2/4 Description
SLVS744C – OCTOBER 2007 – REVISED MAY 2008....................................................................................................................................................... www.ti.com
Figure 4. CH1/3 Block Diagram
Table 3. Recommended Parts for Inductor (CH1/3)
VENDOR
TYPE NO.
INDUCTANCE (
H)
DCR (m
)
SIZE (mm)
TOKO
DE2812C-1098AS-4R7M
4.7
130
2.8
× 3.0 × 1.2
Table 4. Recommended Parts for Capacitor (Input, CH1/3)
VENDOR
TYPE NO.
CAPACITANCE (
F)
TOLERANCE (%)
SIZE (mm)
Murata
GRM21BB30J226ME38
22.0
20
2.0
× 1.25 × 1.25 (EIA code: 0805)
Table 5. Recommended Parts for Capacitor (Output, CH1/3)
VENDOR
TYPE NO.
CAPACITANCE (
F)
TOLERANCE (%)
SIZE (mm)
TDK
C2012X5R0J106M
10.0
20
2.0
× 1.25 × 1.25 (EIA code: 0805)
Both CH2 and CH4 are the same topology. CH2/4 are the average current-mode-controlled synchronous
back-boost converters for engine I/O (CH2) or AFE (CH4). This converter is an adapted H-bridge circuit to use
four switches. These switches are integrated into the device and consist of NMOS-FET only. The gate of the
high-side switch is controlled by the bootstrap circuit. The capacitance of the bootstrap is included in the device.
The device automatically switches from buck operation to boost operation or from boost operation to buck
operation as required by the configuration. It always uses one active switch, one rectifying switch, one switch
permanently on, and one switch permanently off. Therefore, it operates as a buck converter when the input
voltage is higher than the output voltage, and as a boost converter when the input voltage is lower than the
output voltage. There is no mode of operation in which all four switches are permanently switching.
14
Copyright 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65530
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