参数资料
型号: TPS54160ADRCR
厂商: Texas Instruments
文件页数: 30/55页
文件大小: 0K
描述: IC REG BUCK ADJ 1.5A 10SON
标准包装: 3,000
系列: SWIFT™, Eco-Mode™
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.8 V ~ 58 V
输入电压: 3.5 V ~ 60 V
PWM 型: 电流模式
频率 - 开关: 100kHz ~ 2.5MHz
电流 - 输出: 1.5A
同步整流器:
工作温度: -40°C ~ 150°C
安装类型: 表面贴装
封装/外壳: 10-VFDFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 10-SON 裸露焊盘(3x3)
SLVSB56C – MAY 2012 – REVISED FEBRUARY 2014
Feature Description (continued)
Ro =
Aol(V/V)
gm ea
(18)
C OUT
=
gm ea
2 p ′ BW (Hz)
(19)
EA = A0 ′
? s ? ? s ?
? s ?
? 1 + ÷
è 2 p ′ f Z1 ?
? 1 + ÷ ′ ? 1 + ÷
è 2 p ′ f P1 ? è 2 p ′ f P2 ?
(20)
A0 = gm ea ′ Ro ′
R2
R1 + R2
(21)
A1 = gm ea ′ Ro| | R3 ′
1
P1 =
2 p ′ Ro ′ C1
1
Z1 =
R2
R1 + R2
(22)
(23)
2 p ′ R3 ′ C1
1
P2 = type 2a
2 p ′ R3 | | Ro ′ (C2 + Co)
(24)
(25)
P2 =
1
2 p ′ R3 | | Ro ′ Co
type 2b
(26)
1
P2 = type 1
2 p ′ Ro ′ (C2 + Co)
(27)
8.4 Device Functional Modes
8.4.1 Operation with V IN < 3.5 V (Minimum V IN )
The device is recommended to operate with input voltages above 3.5 V. The typical VIN UVLO threshold is 2.5 V
and the device may operate at input voltages down to the UVLO voltage. At input voltages below the actual
UVLO voltage, the device will not switch. The PWRGD output will be controlled once V IN is above 1.5 V
maximum. If EN is externally pulled up to V IN or left floating, when VIN passes the UVLO threshold the device will
become active. Switching is enabled the soft start sequence is initiated. The TPS54160 will start at the soft start
time determined by the external soft start capacitor at the SS/TR pin.
8.4.2 Operation with EN Control
The enable threshold voltage is 1.25 V typical. With EN held below that voltage the device is disabled and
switching is inhibited even if V IN is above its UVLO threshold. The IC quiescent current is reduced in this state. If
the EN voltage is increased above the threshold while V IN is above its UVLO threshold, the device becomes
active. Switching is enabled, and the soft start sequence is initiated. The TPS54160 will start at the soft start time
determined by the external slow start capacitor at the SS/TR pin.
30
Copyright ? 2012–2014, Texas Instruments Incorporated
Product Folder Links: TPS54160 TPS54160A
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TPS54160DGQG4 功能描述:直流/直流开关调节器 3.5-60V,1.5A Step Down SWIFT Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
TPS54160DGQR 功能描述:直流/直流开关调节器 3.5-60V 1.5A Step Down SWIFT Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
TPS54160DGQRG4 功能描述:直流/直流开关调节器 3.5-60V,1.5A Step Down SWIFT Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5