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| 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： | 8/31页 |
| 文件大小： | 931K |
| 代理商： | TPS65530RSLRG4 |
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CH2/4 Recommended Parts
CH5 Description
SLVS744C – OCTOBER 2007 – REVISED MAY 2008....................................................................................................................................................... www.ti.com
Table 6. Recommended Parts for Inductor (CH2)
VENDOR
TYPE NO.
INDUCTANCE (
H)
DCR (m
)
SIZE (mm)
TOKO
DE2812C-1098AS-2R7M
2.7
72
2.8
× 3.0 × 1.2
Table 7. Recommended Parts for Inductor (CH4)
VENDOR
TYPE NO.
INDUCTANCE (
H)
DCR (m
)
SIZE (mm)
TOKO
DE2812C-1098AS-4R7M
4.7
130
2.8
× 3.0 × 1.2
Table 8. Recommended Parts for Capacitor (Input, CH2/4)
VENDOR
TYPE NO.
CAPACITANCE (
F)
TOLERANCE (%)
SIZE (mm)
Murata
GRM21BB30J226ME38
22.0
20
2.0
× 1.25 × 1.25 (EIA code: 0805)
Table 9. Recommended Parts for Capacitor (Output, CH2/4)
VENDOR
TYPE NO.
CAPACITANCE (
F)
TOLERANCE (%)
SIZE (mm)
Taiyo Yuden
JMK212BJ476MG-T
47.0
20
2.0
× 1.25 × 1.25 (EIA code: 0805)
CH5 is the peak current-mode-controlled nonsynchronous boost converter for CCD+. The switch between
inductor and power GND is integrated into the device and consists of NMOS-FET. Also, this device has a load
switch between the battery and inductor and consists of NMOS-FET. The gate of the switch is controlled by a
charge-pump circuit. The output voltage is programmable up to 18 V to use the feedback loop sensed by the
external resistances. The output voltage is calculated by Equation 5. The block diagram is shown in Figure 6.
VOUT5 = (1 + R2/R1) × 1.0 [V]
(5)
Where:
VOUT5 = Output voltage of CH5 [V]
R1, R2 = Feedback resistance (see Figure 6)
16
Copyright 2007–2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65530
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