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1 Features 3 Description
1 The TPS732 family of low-dropout (LDO) voltage • Stable with No Output Capacitor or Any Value or
regulators uses an NMOS pass element in a voltage- Type of Capacitor follower configuration. This topology is stable using
• Input Voltage Range: 1.7 V to 5.5 V output capacitors with low equivalent series
• Ultralow Dropout Voltage: 40 mV Typical at resistance (ESR), and even allows operation without
250 mA a capacitor. The device also provides high reverse
blockage (low reverse current) and ground pin current • Excellent Load Transient Response—With or
Without that is nearly constant over all values of output Optional Output Capacitor current.
• NMOS Topology Provides Low Reverse Leakage
Current The TPS732 uses an advanced BiCMOS process to
yield high precision while delivering very low dropout
• Low Noise: 30 μVRMS Typical (10 kHz to 100 kHz) voltages and low ground pin current. Current
• 0.5% Initial Accuracy consumption, when not enabled, is less than 1 μA
• 1% Overall Accuracy (Line, Load, and and ideal for portable applications. The extremely low
Temperature) output noise (30 μVRMS with 0.1-μF CNR) is ideal for
powering VCOs. These devices are protected by
• Less Than 1-μA Maximum IQ in Shutdown Mode thermal shutdown and foldback current limit.
2 Applications the end of the data sheet.
• Portable and Battery-Powered Equipment
• Post-Regulation for Switching Supplies
• Noise-Sensitive Circuitry such as VCOs
• Point-of-Load Regulation for DSPs, FPGAs,
ASICs, and Microprocessors
TPS73201DCQRTPS73201DCQRTPS73201DCQRTPS73201DCQR
1特征3描述
TPS732系列低电压(LDO)•稳定无输出电容或任何值或
稳压器在电压型电容从动器配置中使用NMOS通道元件。使用这种拓扑是稳定的
•输入电压范围:1.7 V - 5.5 V低等效串联输出电容
•超低电压:典型电阻(ESR)为40mv,甚至可以在无负载情况下工作
250ma一个电容器。该设备还提供高反转
堵塞(低反向电流)和接地销钉电流•良好的负载瞬态响应
如果不这样做,在所有可选输出电容电流的值上几乎都是常数。
•NMOS拓扑提供低反向泄漏
目前,TPS732使用先进的BiCMOS过程
产量高精度,同时交付非常低的辍学率
•低噪声:30μVRMS典型(10千赫至100千赫)电流电压和较低的地面销。当前的
•0.5%的初始精度消费,未启用时,小于1μA
•1%的总体精度(线、负载和便携应用程序的理想精度)。极低的
0.1温度)输出噪声(30μVRMS -μf CNR)是理想的
驱动配装。这些装置受到保护
•不到1-μA最高智商在关闭模式下热停堆和返送电流限制。
应用程序数据表的末尾。
便携式电池供电设备
•开关电源的后监管
•噪音敏感电路,如VCOs
•dsp, FPGAs的负载点调节,
asic和微处理器
低压差稳压器
SMD/SMT
SOT-223-6
1.2 V to 5.5 V
250 mA
1 Output
Positive
550 uA
5.5 V
1.7 V
- 40 C to + 125 C
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