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TPS63901 器件是一款具有超低静态电流(典型值为 75nA)的高效同步降压/升压转换器。该器件具有 32 个用户可编程的输出电压设置,范围为 1.8V 至 5V。
动态电压调节特性使各项应用可于运行期间在两个输出电压之间进行切换;例如,在待机运行期间,可通过降低系统电源电压来降低功耗。
凭借其宽电源电压范围和可编程的输入电流限制(1mA 至 100mA 和无限制),该器件非常适合与 3 芯串联碱性电池、1 芯锂二氧化锰 (Li-MnO2) 或 1 芯锂亚硫酰氯 (Li-SOCl2) 等各种一次电池以及二次电池搭配使用。
高输出电流功能支持 sub-1GHz、BLE、LoRa、wM-Bus 和 NB-IoT 等常用射频标准。
器件型号(1) | 封装 | 封装尺寸(标称值) |
---|---|---|
TPS63901 | WCSP (12) | 1.50 mm × 1.15 mm |
Pin | Type | Description | |
---|---|---|---|
Name | No. | ||
LX1 |
A1 |
— |
Switching node of the buck stage |
VIN |
A2 |
— | Supply voltage |
EN |
A3 |
I | Device enable. A high level applied to this pin enables the device and a low level disables it. It must not be left open. |
GND |
B1,C1 |
— | Ground |
CFG1 |
B2 |
I | Configuration pin 1. Connect a resistor between this pin and ground to set VO(2) and input current limit. Must not be left open. |
SEL |
B3 |
I | Output voltage select. Selects VO(2) when a high level is applied to this pin. Selects VO(1) when a low level is applied to this pin. It must not be left open. |
VOUT |
C2,D2 |
— | Output voltage. The C2 and D2 pins must be connected together. |
CFG2 |
C3 |
I | Configuration pin 2. Connect a resistor between this pin and ground to set VO(2) and input current limit. Must not be left open. |
LX2 |
D1 |
— | Switching node of the boost stage |
CFG3 | D3 | I | Configuration pin 3. Connect a resistor between this pin and ground to set VO(1). Must not be left open. |
MIN | MAX | UNIT | ||
---|---|---|---|---|
VI | Input voltage (VIN, LX1, LX2, VOUT, EN, CFG1, CFG2, CFG3, SEL)(2) | –0.3 | 5.9 | V |
TJ | Operating junction temperature | –40 | 150 | °C |
Tstg | Storage temperature | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±2000 | V |
Charged device model (CDM), per ANSI/ESDA/JEDEC JS-002(2) | ±750 |
MIN | NOM | MAX | UNIT | |||
---|---|---|---|---|---|---|
VI | Supply voltage | 1.8 | 5.5 | V | ||
VO | Output voltage | 1.8 | 5.0 | V | ||
CI | Input capacitance (VI = 2.5 V to 5 V, VO = 3.3 V, IO = 0.4 A)(1) | 5 | µF | |||
CO | Output capacitance (VI = 2.5 V to 5 V, VO = 3.3 V, IO = 0.4 A)(1) | 10 | µF | |||
C(CFG) | Capacitance (CFG1, CFG2, CFG3) | 10 | pF | |||
L | Inductance | 2.2 | µH | |||
ISAT | Inductor saturation current rating | Unlimited current setting | 2 | A | ||
≤ 100-mA current settings | 1 | |||||
TA | Operating ambient temperature | –40 | 85 | °C | ||
TJ | Operating junction temperature | –40 | 125 | °C |