ZHCSKY8G 数据表 | 德州仪器 TI.com.cn

ZHCSKY8G March 2020 – May 2022 TPS7A20

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

DBV|5
- MPDS018S
YCK|4
- MXBG452A
YCJ|4
DQN|4
- MPSS021E

散热焊盘机械数据 (封装 | 引脚)

DQN|4
- QFND355C

订购信息

6.7 Typical Characteristics

V_IN = V_OUT(NOM) + 0.3 V or 1.6 V (whichever is greater), V_OUT = 2.8 V, I_OUT = 1 mA, C_IN = 1 µF, C_OUT = 1 µF, and T_A = 25°C (unless otherwise noted)

V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-1 Line Regulation vs V_IN

V_EN = 1 V, DBV package

Figure 6-3 Line Regulation vs V_IN

V_IN = 3.1 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-5 Load Regulation vs I_OUT

V_IN = 2.8 V, V_EN = 1 V, DBV package

Figure 6-7 Load Regulation vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-9 Load Regulation vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DBV package

Figure 6-11 Load Regulation vs I_OUT

V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-13 Output Voltage Accuracy vs I_OUT

V_EN = 1 V, DBV package

Figure 6-15 Output Voltage Accuracy vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-17 Output Voltage Accuracy vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DBV package

Figure 6-19 Output Voltage Accuracy vs I_OUT

V_EN = 1 V, I_OUT = 1 mA, DQN, YCJ, and YCK packages

Figure 6-21 Output Voltage Accuracy vs V_IN

V_EN = 1 V, I_OUT = 1 mA, DBV package

Figure 6-23 Output Voltage Accuracy vs V_IN

V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-25 Dropout Voltage vs I_OUT

V_EN = 1 V, DBV package

Figure 6-27 Dropout Voltage vs I_OUT

V_OUT = 1.8 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-29 Dropout Voltage vs I_OUT

V_OUT = 1.8 V, V_EN = 1 V, DBV package

Figure 6-31 Dropout Voltage vs I_OUT

I_OUT = 300 mA

Figure 6-33 Dropout Voltage vs V_OUT

V_EN = V_IN, I_OUT = 0 mA

Figure 6-35 I_GND vs V_IN

V_OUT(NOM) = 5.5 V, V_EN = V_IN, I_OUT = 0 mA

Figure 6-37 I_GND vs V_IN in the Dropout Region

V_EN = 1 V

Figure 6-39 I_GND vs I_OUT

V_EN = 0 V

Figure 6-41 Shutdown Current vs V_IN

V_EN = 6 V, I_OUT = 0 mA

Figure 6-43 Enable Pin Leakage Current vs
V_EN – V_IN

V_OUT = 0.8 V, V_EN = 1 V

Figure 6-45 Current Limit

Figure 6-47 Enable Logic High Threshold vs Temperature

V_EN = 0.25 V

Figure 6-49 Output Pulldown Resistor vs Temperature

I_OUT = 1 mA to 300 mA, t_RISING = 1 µs

Figure 6-51 Load Transient

I_OUT = 1 mA to 300 mA, t_RISING = 200 ns

Figure 6-53 Load Transient

I_OUT = 0 mA to 300 mA, t_RISING = 1 µs

Figure 6-55 Load Transient

I_OUT = 0 mA to 300 mA, t_RISING = 200 ns

Figure 6-57 Load Transient

V_IN = 3.1 V → 4.1 V → 3.1 V, V_IN t_RISING = 5 µs, I_OUT = 1 mA

Figure 6-59 Line Transient

I_OUT = 20 mA

Figure 6-61 PSRR vs V_IN vs Frequency and V_IN

Figure 6-63 PSRR vs Frequency and I_OUT

V_RMS BW = 10 Hz to 100 kHz

Figure 6-65 Noise vs Frequency and I_OUT

I_OUT = 300 mA, V_RMS BW = 10 Hz to 100 kHz

Figure 6-67 Noise vs Frequency and V_IN

V_IN = 3.8 V, I_OUT = 300 mA, V_RMS BW = 10 Hz to 100 kHz

Figure 6-69 Noise vs Frequency and C_OUT

V_OUT = 0.8 V, V_IN = 1.8 V, V_RMS BW = 10 Hz to 100 kHz

Figure 6-71 Noise vs Frequency and I_OUT

From V_EN = V_EN(HI) to V_OUT = 95% of V_OUT(NOM), I_OUT = 0 mA

Figure 6-73 Start-Up Turn-On Time

V_OUT = 0.8 V, V_IN = 0 V to 1.8 V, V_EN = 0 V to 1.8 V, V_EN rises 500 µs ahead of V_IN, V_IN and V_EN slew rate = 1 V/µs

Figure 6-75 Start-Up

V_IN = 0 V to 3.8 V, V_EN = 0 V to 3.8 V, V_EN rises 500 µs behind V_IN, V_IN and V_EN slew rate = 1 V/µs

Figure 6-77 Start-Up

V_IN = 0 V to 3.8 V, V_EN = 0 V to 3.8 V, V_EN = V_IN, V_IN and slew rate = 1 V/µs

Figure 6-79 Start-Up

V_OUT = 5.5 V, V_IN = 0 V to 6.0 V, V_EN = 0 V to 6.0 V, V_EN rises 500 µs ahead of V_IN, V_IN and V_EN slew rate = 1 V/µs

Figure 6-81 Start-Up

V_OUT = 0.8 V, V_IN = 1.8 V, V_EN = 0 V to 1.8 V,
V_EN slew rate = 1 V/µs, C_OUT = 10 µF

Figure 6-83 Inrush Current

V_OUT = 5.5 V, V_IN = 6.0 V, V_EN = 0 V to 6.0 V,
V_EN slew rate = 1 V/µs, C_OUT = 10 µF

Figure 6-85 Inrush Current

V_OUT = 5.5 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-2 Line Regulation vs V_IN

V_OUT = 5.5 V, V_EN = 1 V, DBV package

Figure 6-4 Line Regulation vs V_IN

V_IN = 3.1 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-6 Load Regulation vs I_OUT

V_IN = 2.8 V, V_EN = 1 V, DBV package

Figure 6-8 Load Regulation vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-10 Load Regulation vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DBV package

Figure 6-12 Load Regulation vs I_OUT

V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-14 Output Voltage Accuracy vs I_OUT

V_EN = 1 V, DBV package

Figure 6-16 Output Voltage Accuracy vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-18 Output Voltage Accuracy vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DBV package

Figure 6-20 Output Voltage Accuracy vs I_OUT

V_OUT = 5.5 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-22 Output Voltage Accuracy vs V_IN

V_OUT = 5.5 V, V_EN = 1 V, DBV package

Figure 6-24 Output Voltage Accuracy vs V_IN

V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-26 Dropout Voltage vs I_OUT

V_EN = 1 V, DBV package

Figure 6-28 Dropout Voltage vs I_OUT

V_OUT = 1.8 V, V_EN = 1 V, DQN, YCJ, and YCK packages

Figure 6-30 Dropout Voltage vs I_OUT

V_OUT = 1.8 V, V_EN = 1 V, DBV package

Figure 6-32 Dropout Voltage vs I_OUT

V_EN = 1 V, I_OUT = 0 mA

Figure 6-34 I _GND vs V_IN

V_OUT(NOM) = 5.5 V, V_EN = 1 V, I_OUT = 0 mA

Figure 6-36 I_GND vs V_IN in the Dropout Region

V_EN = 1 V

Figure 6-38 I_GND vs I_OUT

V_EN = 1 V

Figure 6-40 I_GND vs I_OUT

V_EN = 0 V

Figure 6-42 Shutdown Current vs V_IN

V_EN = 1 V

Figure 6-44 Current Limit

V_EN = 1 V

Figure 6-46 UVLO Threshold vs Temperature

Figure 6-48 Enable Logic Low Threshold Low vs Temperature

V_EN = 0.25 V

Figure 6-50 Smart Enable Pulldown Resistor vs Temperature and V_IN

I_OUT = 300 mA to 1 mA, t_FALLING = 1 µs

Figure 6-52 Load Transient

I_OUT = 300 mA to 1 mA, t_FALLING = 200 ns

Figure 6-54 Load Transient

I_OUT = 300 mA to 0 mA, t_FALLING = 1 µs

Figure 6-56 Load Transient

I_OUT = 300 mA to 0 mA, t_FALLING = 200 ns

Figure 6-58 Load Transient

V_IN = 3.1 V → 4.1 V → 3.1 V, V_IN t_RISING = 5 µs,
I_OUT = 300 mA

Figure 6-60 Line Transient

I_OUT = 300 mA

Figure 6-62 PSRR vs Frequency and V_IN

I_OUT = 20 mA

Figure 6-64 PSRR vs Frequency and C_OUT

I_OUT = 20 mA, V_RMS BW = 10 Hz to 100 kHz

Figure 6-66 Noise vs Frequency and V_IN

V_IN = 3.8 V, I_OUT = 20 mA, V_RMS BW = 10 Hz to 100 kHz

Figure 6-68 Noise vs Frequency and C_OUT

V_OUT = 0.8 V, V_RMS BW = 10 Hz to 100 kHz

Figure 6-70 Noise vs Frequency and I_OUT

V_OUT = 5.5 V, V_IN = 6 V, V_RMS BW = 10 Hz to 100 kHz

Figure 6-72 Noise vs Frequency and I_OUT

V_OUT = 0.8 V, V_IN = 0 V to 1.8 V, V_EN = 0 V to 1.8 V, V_EN rises 500 µs behind V_IN, V_IN and V_EN slew rate = 1 V/µs

Figure 6-74 Start-Up

V_OUT = 0.8 V, V_IN = 0 V to 1.8 V, V_EN = V_IN,
V_IN slew rate = 1 V/µs

Figure 6-76 Start-Up

V_IN = 0 V to 3.8 V, V_EN = 0 V to 3.8 V, V_EN rises 500 µs ahead of V_IN, V_IN and V_EN slew rate = 1 V/µs

Figure 6-78 Start-Up

V_OUT = 5.5 V, V_IN = 0 V to 6.0 V, V_EN = 0 V to 6.0 V, V_EN rises 500 µs behind V_IN, V_IN and V_EN slew rate = 1 V/µs

Figure 6-80 Start-Up

V_OUT = 5.5 V, V_IN = 0 V to 6 V, V_EN = V_IN, V_IN slew rate = 1 V/µs

Figure 6-82 Start-Up

V_IN = 3.8 V, V_EN = 0 V to 3.8 V, V_EN slew rate = 1 V/µs,
C_OUT = 10 µF

Figure 6-84 Inrush Current