ZHCSEI2B 数据表 | 德州仪器 TI.com.cn

ZHCSEI2B January 2016 – June 2021 TPS7A84

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

RGR|20
- MPQF239A

散热焊盘机械数据 (封装 | 引脚)

RGR|20
- QFND242E

订购信息

6.6 Typical Characteristics

at T_A = 25°C, V_IN = 1.4 V or V_IN = V_OUT(NOM) + 0.4 V (whichever is greater), V_BIAS = open, V_OUT(NOM) = 0.8 V, V_EN = 1.1 V, C_OUT = 47 μF, C_NR/SS = 0 nF, C_FF = 0 nF, and PG pin pulled up to V_IN with 100 kΩ (unless otherwise noted)

V_IN = 1.1 V, V_BIAS = 5 V, C_OUT = 47 μF || 10 μF || 10 μF,
C_NR/SS = 10 nF, C_FF = 10 nF

Figure 6-1 PSRR vs Frequency and I_OUT

V_IN = 1.4 V, I_OUT = 1 A, C_OUT = 47 μF || 10 μF || 10 μF,
C_NR/SS = 10 nF, C_FF = 10 nF

Figure 6-3 PSRR vs Frequency and V_BIAS

V_IN = V_OUT + 0.3 V, V_BIAS = 5.0 V, I_OUT = 3 A, C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = 10 nF, C_FF = 10 nF

Figure 6-5 PSRR vs Frequency and V_OUT With Bias

V_IN = V_OUT + 0.3 V, V_OUT = 1 V, I_OUT = 3 A, C_NR/SS = 10 nF, C_FF = 10 nF

Figure 6-7 PSRR vs Frequency and C_OUT

V_IN = V_OUT + 0.3 V and V_BIAS = 5 V for V_OUT ≤ 2.2 V,
C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = 10 nF, C_FF = 10 nF, RMS noise BW = 10 Hz to 100 kHz

Figure 6-9 Output Voltage Noise vs Output Voltage

I_OUT = 3 A, C_OUT = 47 μF \|\| 10 μF \|\| 10 μF, C_NR/SS = 10 nF, C_FF = 10 nF, RMS noise BW = 10 Hz to 100 kHz

Figure 6-11 Output Noise vs Frequency and Input Voltage

V_IN = V_OUT + 0.3 V, V_BIAS = 5 V, I_OUT = 3 A, sequencing with a dc/dc converter and PG, C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = 10 nF, RMS noise BW = 10 Hz to 100 kHz

Figure 6-13 Output Noise vs Frequency and C_FF

V_IN = 1.2 V, V_OUT = 0.9 V, V_BIAS = 5.0 V, I_OUT = 3 A,
C_OUT = 47 μF || 10 μF || 10 μF, C_FF = 10 nF

Figure 6-15 Start-Up Waveform vs Time and C_NR/SS

I_{OUT, DC} = 100 mA, C_OUT = 47 μF || 10 μF || 10 μF,
C_NR/SS = C_FF = 10 nF, slew rate = 1 A/μs

Figure 6-17 Load Transient vs Time and V_OUT Without Bias

V_IN = 1.2 V, V_BIAS = 5.0 V, C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = C_FF = 10 nF, slew rate = 1 A/μs

Figure 6-19 Load Transient vs Time and DC Load (V_OUT = 0.9 V)

I_OUT = 3 A, V_BIAS = 6.5 V

Figure 6-21 Dropout Voltage vs Input Voltage With Bias

V_IN = 1.1 V, V_BIAS = 3 V

Figure 6-23 Dropout Voltage vs Output Current With Bias

I_OUT = 100 mA to 3 A

Figure 6-25 Load Regulation vs Output Voltage

V_IN = 3.8 V

Figure 6-27 Load Regulation (3.3-V Output)

V_OUT = 0.8 V, V_BIAS = 0 V, I_OUT = 5 mA

Figure 6-29 Line Regulation Without Bias

I_OUT = 5 mA

Figure 6-31 Line Regulation (5-V Output)

V_IN = 1.1 V, I_OUT = 5 mA

Figure 6-33 Quiescent Current vs Bias Voltage

V_IN = 1.1 V

Figure 6-35 Shutdown Current vs Bias Voltage

Figure 6-37 V_IN UVLO vs Temperature

V_IN = 1.4 V, 6.5 V

Figure 6-39 Enable Threshold vs Temperature

V_IN = 6.5 V

Figure 6-41 PG Voltage vs PG Current Sink

I_OUT = 3 A, V_BIAS = 5 V, C_OUT = 47 μF || 10 μF || 10 μF,
C_NR/SS = 10 nF, C_FF = 10 nF

Figure 6-2 PSRR vs Frequency and V_IN With Bias

I_OUT = 1 A, C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = 10 nF,
C_FF = 10 nF

Figure 6-4 PSRR vs Frequency and V_IN

I_OUT = 3 A, C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = 10 nF,
C_FF = 10 nF

Figure 6-6 PSRR vs Frequency and V_IN for V_OUT = 3.3 V

V_IN = V_OUT + 0.3 V, V_OUT = 1 V, I_OUT = 3 A,
C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = 10 nF, C_FF = 10 nF

Figure 6-8 V_BIAS PSRR vs Frequency

V_IN = V_OUT + 0.3 V and V_BIAS = 5 V for V_OUT ≤ 2.2 V,
I_OUT = 3 A, C_OUT = 47 μF || 10 μF || 10 μF, C_NR/SS = 10 nF, C_FF = 10 nF, RMS noise BW = 10 Hz to 100 kHz

Figure 6-10 Output Noise vs Frequency and Output Voltage