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参数资料
| 型号： | TPS62000YEGT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.6 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, BGA12 |
| 封装： | DSBGA-12 |
| 文件页数： | 20/26页 |
| 文件大小： | 878K |
| 代理商： | TPS62000YEGT |
FUNCTIONAL BLOCK DIAGRAM
PFM/PWM
Control Logic
Current Limit
Logic
_
+
Compensation
Soft
Start
Slope Compensation
PFM/PWM
Mode Select
PFM/PWM
Comparator
Error Amplifier
_
+
Current
Sense
Driver
Shoot-Through
Logic
_
+
Undervoltage
Lockout
Bias Supply
10
_
+
Vref = 0.45 V
R2
R1
R1 + R2
≈ 1 M
Power Good
Sync
+
Oscillator
_
+
Load Comparator
Current Sense
+
Offset
Antiringing
FB
N-Channel
Power MOSFET
P-Channel
Power MOSFET
L
PGND
EN
FB
PG
FC (See Note B)
VIN
GND
SYNC
ILIM
EN
(See
Note A)
www.ti.com ........................................................................................................................................... SLVS294E – SEPTEMBER 2000 – REVISED AUGUST 2008
A.
The adjustable output voltage version does not use the internal feedback resistor divider. The FB pin is directly
connected to the error amplifier.
B.
Do not connect the FC pin to an external power source
PIN FUNCTIONS
PIN
I/O
DESCRIPTION
NAME
NO.
Enable. A logic high enables the converter, logic low forces the device into shutdown mode reducing the supply
EN
8
I
current to less than 1
A.
Feedback pin for the fixed output voltage option. For the adjustable version an external resistive divider is
FB
5
I
connected to FB. The internal voltage divider is disabled for the adjustable version.
Supply bypass pin. A 0.1
F coupling capacitor should be connected as close as possible to this pin for good
FC
2
high frequency input voltage supply filtering.
GND
3
Ground
Switch current limit. Connect ILIM to GND to set the switch current limit to typically 600 mA, or connect this pin
ILIM
6
I
to VIN to set the current limit to typically 1200 mA.
L
9
I/O
Connect the inductor to this pin. L is the switch pin connected to the drain of the internal power MOSFETS.
Power good comparator output. This is an open-drain output. A pullup resistor should be connected between
PG
4
O
PG and VO. The output goes active high when the output voltage is greater than 92% of the nominal value.
PGND
10
Power ground. Connect all power grounds to PGND.
Input for synchronization to external clock signal. Synchronizes the converter switching frequency to an
external clock signal with CMOS level:
SYNC
7
I
SYNC = HIGH: Low-noise mode enabled, fixed frequency PWM operation is forced
SYNC = LOW (GND): Power save mode enabled, PFM/PWM mode enabled.
VIN
1
I
Supply voltage input
Copyright 2000–2008, Texas Instruments Incorporated
3
Product Folder Link(s): TPS62000, TPS62001, TPS62003 TPS62004, TPS62005, TPS62006 TPS62007, TPS62008
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| TPS62000YZGR | 功能描述:开关变换器、稳压器与控制器 Adj 600-mA 95% Eff Step-Down Converter RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS62000YZGT | 功能描述:开关变换器、稳压器与控制器 Adj 600-mA 95% Eff Step-Down Conv RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TPS62001DGS | 功能描述:直流/直流开关调节器 0.9V Out 600mA Step-Down Con 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 |
| TPS62001DGSG4 | 功能描述:直流/直流开关调节器 0.9V Out 600mA Step-Down Con 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 |
| TPS62001DGSR | 功能描述:开关变换器、稳压器与控制器 0.9V Out 600mA Step-Down Con RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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